Just a heads up, I haven't tested this in normal tag matches, but during the storyline if you have any of the player trainer options on during a tag match with Velventeen when you tag him in the game will crash, tested that about 5 times, weak opponents is fine, so just remember to turn off all player options before tagging him.
Also after that you be greeted with a cut scene for your second players match, if you don't disable all trainer options it will crash.
Just some oddity I've come across, nothing to do a full report about, just a heads up if other come across this.
Not sure if fault of trainer coding etc but yes experienced this is all matchs too and didn't matter if you turnt options off if you used player options at all on hitting continue at match completion it causes a ctd so having to not use trainer to be able to progress on the myplayer story