I think he's doing wrestling in order to be hurt—as a poor stand in for the pain he enjoys in the bedroom.

There was a plot on friends where Joey was dating a girl clearly more suited to Chandler. Joey wanted to get her a pen as a birthday present but Chandler got her a first edition book and gave it to Joey to give to the girl so as not to hurt her feelings.
I think the writers are hinting at Chidi and Tahani being meant…