PARADISE VALLEY, Ariz. -- Ever since the game was invented, before television or even radio existed, baseball counted on the eyes and ears of umpires on the field. Starting this season, many key decisions will be made in a studio far away. Major League Baseball vaulted into the 21st century of technology on Thursday, approving a huge expansion of instant replay in hopes of eliminating blown calls that riled up players, managers and fans. "I think its great," San Francisco Giants manager Bruce Bochy said. "Its about getting it right." Acknowledging the human element had been overtaken in an era when everyone except the umps could see several views over and over in slow-motion, owners and players and umpires OKed the new system. Now each manager will be allowed to challenge at least one call per game. If hes right, he gets another challenge. After the seventh inning, a crew chief can request a review on his own if the manager has used his challenges. "I tell you the fans will love it," baseball Commissioner Bud Selig said after owners met and voted their unanimous approval. "Its another in a long list of changes that will make this sport better than it already is." Baseball was the last major pro sport in North America to institute replay when it began late in the 2008 season. Even then, it was only used for close calls on home runs. The NFL, NBA, NHL, some NCAA sports and major tennis tournaments all use a form of replay, and even FIFA and the English Premier League have adopted goal-line technology for soccer. Not that managers wont still occasionally bolt from the dugout, their veins bulging. The so-called "neighbourhood play" at second base on double plays cannot be challenged. Many had safety concerns for middle infielders being wiped out by hard-charging runners if the phantom force was subject to review. Ball-and-strike calls cant be contested. Neither can check-swings and foul tips. Nor can obstruction and interference rulings -- those are up to the umpires judgment, like the one at third base in St. Louis that ended Bostons loss in Game 3 of the World Series last October. All reviews will be done by current MLB umpires at a replay centre in MLB.coms New York office. To create a large enough staff, MLB agreed to hire six new big league umpires and call up two minor league umps for the entire season. A seventh major league umpire will be added to replace the late Wally Bell. The umpires on the field will be able to talk to the command centre. The replay umpire will make the final decision -- that could include where to place runners if, say, a call is reversed from out to safe on a trapped ball in outfield. In addition, managers and others in the dugout will be allowed to communicate by phone with someone in the clubhouse who can watch the videos and advise whether to challenge a call. "Im excited to see how it works out. I am interested to see how the flow of the game is affected," Oakland catcher Stephen Vogt said. "Its a good use of the technology that we have, the fact that we will be able to get more calls corrected and fixed." Joe Torre, MLBs executive vice-president of baseball operations, said work continues on a proposed rule that would ban home-plate collisions between runners and the catcher. The rule has not been written and talks on its content are ongoing between MLB representatives and the players union, he said. Even since William McLean became the first professional umpire when he worked a Boston-Philadelphia National League game on April 22, 1876, baseball has celebrated its old-fashioned traditions. Having umpires make the calls on the field was one of them. So were arguments between managers and umpires, often to the delight of fans. Worries that replays would slow the pace even more were offset by this: Replay decisions cannot be argued. Replay umpires will make their final rulings in no more than a minute to 90 seconds, MLB Executive Vice-President of Baseball Operations Joe Torre estimated. "With our technology today we can do that in a way I dont think we will interrupt the flow of the game," Bochy said. To make reviews uniform, cameras will transit 12 angles from each ballpark. MLB Chief Operating Officer Rob Manfred said it was uncertain whether the replay system will be in place in Australia for the season-opening series between the Arizona Diamondbacks and Los Angeles Dodgers. "For some, the discussions regarding expanded replay appeared to move too slowly, too deliberately," said Brian Lam, the lawyer for the World Umpires Association. "But there were technical and operational challenges that needed to be addressed, and that took time. With so many competing interests and opinions, it is unlikely that all will be completely pleased at the end of the day, but thats often the nature of things." MLB had talked for a few years about expanding replay to include fair-or-foul calls and traps. Several missed calls in the post-season ratcheted up the debate. The players union gave its approval for the 2014 season. "The players look forward to the expanded use of replay this season, and they will monitor closely its effects on the game before negotiating over its use in future seasons," union Executive Director Tony Clark said in a statement. Selig said the replay expansion ranks "very, very high" when compared with other moves made during his time on the job. The new rule allows ballparks to show fans the same replays on stadium video screens. But only plays under review can be shown on the screen in slow motion. "Its the first time in the history of the game that a manager has the opportunity to change the call of a play that may have adversarily affected their team," said Atlanta Braves President John Schuerholz, who chaired the committee that came up with the replay plan, "that may have cost them the game, that may have cost them the division, that may have cost them a World Series." The existing rule on umpires calling for a review of whether a hit was a home run or not will remain, although the review will be done by the umpire in New York. Torre said the number of manager challenges were limited to a maximum of two to maintain "the rhythm of the game." "Were going to start this way and if we feel something has to be adjusted were certainly going to be aware of that," he said. Torre and MLB executive Tony La Russa, both ex-managers, joined Schuerholz on the replay committee. "Were really going for the dramatic miss, not all misses," La Russa said. "...This is a challenge for a game-changing play that goes against you, and now you can correct it." Discount Air Jordan Online . So much so that even a simple foul pop up to the first baseman turned into a run. Houstons four-run rally in the ninth inning to beat the Seattle Mariners 6-4 on Monday night was capped by a bizarre play that started as Crowe fouled out to first baseman Justin Smoak with runners on second and third. Wholesale Air Jordan Online . Among the teams moves was trading one of the teams two third round picks, no. 83 overall, to the Chicago Blackhawks for Brandon Bollig, a six-foot-two, 223-pound left-winger who had seven goals, seven assists, and 92 penalty minutes in 82 games last season. http://www.cheapairjordanonline.com/ . Bibeau, Torontos sixth-round pick at No. 172 overall in last years draft, was named the outstanding goaltender of the 2014 MasterCard Memorial Cup. Air Jordan Shoes Outlet . PETERSBURG, Fla. Nike Air Jordan Cheap Free Shipping . The Detroit Tigers closer blew a three-run lead in the ninth inning Wednesday night against the Dodgers.Who have been the star performers in the Womens World T20 so far? The semi-finals have arrived, with England playing Australia on Wednesday before New Zealand face West Indies on Thursday, but who has been responsible for getting them there, and who else has shone?Heres a look at my team for the tournament, with a few familiar faces present, as well as the odd new name... Charlotte Edwards (England) Charlotte Edwards has answered her critics with a terrific tournament at the top of the order for England Refreshed after a disappointing home Ashes series, with her future as England captain questioned, Edwards has proven the doubters wrong by providing a commanding presence at the top of Englands batting in India. Two man-of-the-match performances, clocking up a joint-most 171 runs, ensured her team finished first and unbeaten in Group B. Australia are huge favourites Charlotte Edwards says England are underdogs in World T20 semi Tammy Beaumont (England)Written off and cast adrift from the national side until Mark Robinson joined as head coach in late November last year, Beaumont looks reborn under the former Sussex coachs tutelage. Delivering the attacking batting that Robinson wants from his charges, Beaumonts fluency and rapid scoring has re-energised Englands top order, especially in the power play. All three of Englands sixes have been struck by Beaumont.Stafanie Taylor (West Indies) Stafanie Taylor, the heart of the West Indies team The heart of the West Indies team, Taylor perfectly combines power-hitting tenacity with measured strokeplay and has propelled her side to the knockout round. The 24-year-old has also taken advantage of the spin friendly conditions, picking up five wickets with her canny offspin bowling.Suzie Bates (New Zealand)On pitches not designed to aid aggressive openers, White Ferns captain Bates has countered that thinking and wacked her way to 171 runs, the most alongside Edwards. After failing to make the semi-finals at the previous event, New Zealand have made quite the impression this time out, with Bates a key figure in their success.Elyse Villani (Australia) Elyse Villani has returned to form at just the right time for Australia Coming into the competition on the back of an array of mediocre scores, Villani struck just four runs in Australias opening two matches, as the reigning champions made an underwhelming start. But a timely return to form - pummeling 53 not out and 43 in the Southern Stars last two group gaames - has demonstrated her hard-hitting ability.ddddddddddddachel Priest (New Zealand)Leading from the front, Priests dependable run-scoring exploits allow those around her to capitalise on solid starts. She knows all too well how to thrash the ball to the ropes, 60 of her 102 runs have come by way of boundaries in the group stage, and she is one of the safest wicketkeepers in the tournament.Sophie Devine (New Zealand)Beginning her career as a strike bowler, Devine has slowly molded herself into a feisty all-rounder with a penchant for bashing the ball a long way, scoring the winning runs against South Africa with a huge six. Crucially for New Zealand, as well as scoring useful runs, Devine remains effective with the ball, claiming five wickets.Harmanpreet Kaur (India) Harmanpreet Kaur took 2-22 against England as India threatened to pull off an upset With England on course to win a routine match over India, Kaur stepped up and removed two of their best batsmen - Beaumont and Sarah Taylor - with consecutive deliveries. Chaos ensued and while India were unable to eek out a win, her intervention almost kept their semi-final hopes alive. A calm presence in Indias middle order, Kaur finished with both the most runs and wickets for her team.Anam Amin (Pakistan)Sterling efforts in her first two tournament clashes secured Amin back-to-back man of the match awards, including a 16 dot-ball extravaganza that saw Pakistan defeat rivals India. Still only 23-years-old, her unflinching accuracy and technical know-how suggests much is still to come from this tenacious left-arm spinner.Anya Shrubsole (England) England seamer Anya Shrubsole has again impressed during the World T20 Despite playing on unsympathetic wickets for pace bowlers, Shrubsole, the 2014 World T20 top wicket-taker, is still causing batsmen nightmares. Consistent with her menacing lines, shes dismissed seven opponents. The Somerset seamers composure with the bat in a mind-bending chase against India also guaranteed England victory.Leigh Kasperek (New Zealand)The Scotland-born Kiwi spinner travelled to India off the back of a successful showing in New Zealands surprising T20I series win over Australia. But she has surpassed all expectations, her unerring control and slight rip of the ball embarrassing many. Topping the most wickets chart with nine in four matches, her devilish bowling came to the fore against Australia, again, where a spell of three wickets in nine balls rocked the Southern Stars.Watch live coverage of England Womens semi-final against Australia on Sky Sports 2 from 9.30am on Wednesday, then catch the second semi-final between New Zealand and West Indies, also on Sky Sports 2 from 9.30am, on Thursday. 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