Expanded Replay Makes Debut in Baseball: Opening Day featured the first managers' challenges under Major League Baseball's new expanded replay system. Each manager gets one challenge per game, two if the first call is overturned. The first five reviews Monday were resolved in under two and a half minutes. "It's kind of weird going out there. You used to go out there to kind of argue with the umpire. Now you go out there to say, 'Hey, I didn't see it good. What did you have?'" said Milwaukee Brewers manager Ron Roenicke.