There's a bronze Big Band in a rival's team, most likely he was evolved to silver but the game still thinks he's bronze. I didn't fight him to see if he was actually bronze in the match since I almost always pick the highest FS opponent.
This is from the silver prize fight, as you can see there's an enemy team with significantly lower FS than my team and the 2 other enemy teams. Also all of the fighters on the team are bronze.
