Baker Mayfield is breaking down his decision to shave right before AND right after the Browns' devastating loss to the Broncos on Sunday ... saying he "didn't deserve" to wear a handlebar mustache.
Aside from Cleveland's awful performance, the most notable takeaway from Sunday was Baker's facial hair switcharoo -- shaving his beard to a handlebar look for the game, and then chopping it down to a porn 'stache for post-game interviews.
Baker explained his decision after practice on Wednesday ... saying he had been undefeated while wearing the handlebar look .