Home plate umpire Brian deBrauwere checks an iPhone while wearing an earpiece prior to the start of the Atlantic League All-Star minor league baseball game, Wednesday, July 10, 2019, in York, Pa. The umpire received information about balls and strikes with the device connected to a TrackMan computer system that uses Doppler radar. The independent Atlantic League became the first American professional baseball league to let the computer call balls and strikes during the all star game. (AP Photo/Julio Cortez)