Its different with each team, but I know on some teams the starting pitcher gets to choose if they want to wear an alternate jersey or the regular one. Some teams' management decides what they will wear that game.
Chat with our AI personalities
Well obviously theirs the away game uniforms and the home game uniforms but the starting pitchers decides which uniform to wear.
If it's a home game they wear their home jerseys and if it's an away game they wear the away jerseys.