FILE -A radar device is seen on the roof behind home plate at PeoplesBank Park during the third inning of the Atlantic League All-Star minor league baseball game, Wednesday, July 10, 2019, in York, Pa. Major League Baseball will test robot umpires as part of a challenge system during spring training at 13 ballparks hosting 19 teams, which could lead to regular-season use in 2026. (AP Photo/Julio Cortez, File)