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Close Call Sports & Umpire Ejection Fantasy League: Press
My eye over yours': Ball-and-strike challenges, possibly coming to
There's now scientific proof that MLB umpires just want to get the
The Secret History Of Black Baseball Players In Japan : Code
Does MLB Have an Umpire Problem Sports Analytics Group at Berkeley
MLB umpires balance good, bad of tech advances - Global Sport Matters
MLB to host Umpire Prospect Development Camp
MLB Umpires Missed 34,294 Pitch Calls in 2018. Time for Robo-umps
MLB umpires may get on-field microphones to explain replay review