http://profootballtalk.nbcsports.com/2012/09/18/49ers-tarell-brown-fined-5250-for-red-undergarment-sleeves/

San Francisco cornerback Tarell Brown is paying the price for wearing a shirt underneath his shoulder pads that didn’t meet with the NFL’s specifications.

Brown had been fined $5,250, and Matt Maiocco has posted the letter Brown got from the league explaining the fine.

“Dear Tarell: During the Detroit Lions-San Francisco 49ers game on September 16, 2012, you were in violation of the NFL Uniform and Equipment Rules. Specifically, you wore red undergarment sleeves. Your team designated undergarment color is white,” the letter says.

It’s unclear whether Brown didn’t know that his team designated undergarment color is white, or if he knew and just didn’t care. The NFL’s fine is an attempt to make him care.