10/30/2015 10:51 AM PDT BY TMZ STAFF
Mark Cuban — swag game weak.
The Dallas Mavericks owner is havin’ a tough week — first, he loses to the Clippers … and now, one of his own players is blasting his fashion sense.
Chandler Parsons went to Twitter to try and social media shame his boss — posting a pic of Cuban in a Three Commas t-shirt, a pair of dad jeans and some sneaks … with the caption, “NBA needs a new dress code for owners.”
BTW, we didn’t think the shirt was thaaaat bad.
The jeans on the other hand …