Tapping, twirling and "T" signs: Sports replays have a language all their own

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ABC News - Technology 6 days ago • abcnews.com

Tapping, twirling and "T" signs: Sports replays have a language all their own

Every moment of any major sporting event can be dissected in high-definition these days, meaning officials and umpires sometimes seem to be staring at a TV screen to review close calls as much as they’re watching the gam…

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