The NFL has fined San Francisco 49ers tight end George Kittle $13,659 for use of abusive language on the T-shirt he wore under his uniform against the Dallas Cowboys on Sunday night, a source told ESPN's Jeremy Fowler on Friday.

Kittle wore the shirt under his red No. 85 jersey during the Niners' 42-10 win over the Cowboys. The gray shirt said "F--- Dallas" in blue lettering, and Kittle revealed it while celebrating running back Jordan Mason's 26-yard touchdown run early in the fourth quarter.

Kittle said Thursday he knew he would probably have to pay for his wardrobe choice.

"Probably to get a fine," Kittle said. "I wore a personalized T-shirt, maybe an inappropriate word. So it is what it is. It was a decision I made. If they want to fine me, they fine me."

On Wednesday, sources told ESPN's Adam Schefter that the league was considering a fine for a "personal message" uniform violation. The price tag for such an infraction is $10,927.

Don't forget to follow us on Twitter at http://twitter.com/theredzoneorg 
 
Don't forget to follow us on Threads at https://www.threads.net/@theredzoneorg 
  
Like us on Facebook at http://facebook.com/Theredzone.org