WWE Superstar Seth Rollins got real pissy during a wrestling event last week -- and by pissy, we mean he went pee in the middle of a match.
Rollins dropped the urinary news during an interview with the Wonder Years lead singer Dan Campbell ... after Seth was asked what his all-time worst mistake in the ring was.
The ex-tag champ says he badly had to go during the match ... but the best part is how he solved the problem.
Believe in the not breaking the seal.
1:00 PM PST -- Rollins tells TMZ Sports ... the deed was done in an empty water bottle under the ring ... and not just on the floor.