Featured Baseball September 5, 2023 4:55 pm MLB prospects who got the call up September 1 On September 1, MLB active rosters expanded from 26 to 28 players for the remainder of the regular season. Here are 10 prospects who got their call to the big leagues on September 1. US & World Videos 0:46 Bryson DeChambeau wins 2024 US Open 1:55 Jaylen Brown's foundation gives back with sweepstakes for Game 5 tickets 0:45 2024 US Open Round 3 recap 2:02 Celtics fans looking forward to game 5 of the NBA Finals 7:27 Mavs blow out Celtics in Dallas to extend NBA Finals