Cleveland Browns defensive end Myles Garrett lost control of his emotions at the end of Thursday Night Football. He kept his composure much better in his response to the NFL nailing him with an indefinite suspension on Friday.

“Last night, I made a terrible mistake,” Garrett wrote in a statement. “I lost my cool and what I did was selfish and unacceptable. I know that we are all responsible for our actions, and I can only prove my true character through my actions moving forward.

“I want to apologize to Mason Rudolph, my teammates, our entire organization, our fans and to the NFL.”

Garrett received, at minimum, a six-game suspension for ripping Rudolph’s helmet off and then swinging and hitting the quarterback in the head with it.

Garrett and Rudolph were tangled on one of the final plays of the 21-7 Browns victory Thursday night. Garrett appeared to hold onto the quarterback too long after he released the ball, and then Rudolph wrongfully responded by trying to push at Garrett’s helmet.

When the two players got to their feet, the shoving continued despite Steelers guard David Decastro stepping between the two. After Garrett landed his helmet blow, Steelers center Maurkice Pouncey threw punches and kicks at Garrett.

Pouncey received a three-game suspension while Rudolph was fined.

Garrett will sit out at least the six remaining regular season games this year with his indefinite ban. Should the Browns go on a winning streak and make the playoffs, Garrett will miss any postseason games as well. He will only be eligible to return during the offseason if NFL commissioner Roger Goodell reinstates him.

Garrett played for Texas A&M from 2014-16. In 34 career college games, he posted 47 tackles for loss and 31 sacks.

Here’s Garrett’s full statement from Friday: