Usually after
Some times they ask for special badge to go with the playeras But they use sign autraphs after the game.
When we have been my daughter got signatures after the game. She stood on the side where the exit the field.
Sometimes they walk to their locker rooms, if you recognize them, they will even stop to take pictures.
We sat on the field and seen them run by a bit. It's crazy when your warmup is running 4 miles. But, two 26yo were feet away from them on the field and they just kept running and practicing. After the game both teams kind of walked off. Not too positive because we didn't ask, but I wouldn't push the possibility just in case. Their main focus is to prepare for the game, win and then go home. Wouldn't hurt to try. The doors open around an hour before the game so you have that much time essentially to try and make your move. Good luck! And let me know what happens!
Thanks! Your answer is awaiting moderation.