Former San Antonio Spurs forward Matt Bonner made one of the best – and funniest – retirement videos to announce he is officially retiring from the NBA.

But his ex-Spurs teammates may have matched the laughs provided by the “Red Mamba” with what they did on Thursday night: they decided to jokingly “take off” a flannel shirt:

Bonner loved it:

This is a reminder that even though Spurs sometimes seem buttoned up as an organization, one of the reasons they have enjoyed sustained success is their closed locker room and sense of humor.

(Thanks to NBC Sports to share.)