In the NFL's opinion, Browns rookie quarterback Baker Mayfield crossed a line while celebrating a touchdown in the second quarter of last Sunday's 26-18 win over the Cincinnati Bengals.

The league fined Mayfield $10,026 for unsportsmanlike conduct for a gesture he made on the sideline right in front of offensive coordinator Freddie Kitchens.

Mayfield's camp plans to appeal the fine, agent Jack Mills told the Beacon Journal/Ohio.com by phone Saturday.

After Mayfield threw a 1-yard touchdown pass to tight end Darren Fells with 7:12 left in the second quarter, the No. 1 overall pick in April's draft ran up to Kitchens on the sideline and appeared to pretend to expose his privates.

On Wednesday, Mayfield denied he pretended to expose himself.

"I didn’t," he said.

Kitchens also defended Mayfield on Thursday when asked about the gesture.

"I don't know what he did wrong," Kitchens said. "I don't know. I don't understand what he did wrong. I don't understand what the big deal is. He's in the middle of a football game in the National Football League. There's great emotion in a game of football, and whatever he does on the football field is on the football field, so I don't know.

"I like guys that have a relentless pursuit of competition, and they rally around the competition. Sometimes when you are in competition, some things you do, you just do. You don't even know why the hell you do it, but I don't have a problem with Baker. If I did, I would talk to him about it, and any conversation I had with him would stay between us."