Houston Texans defensive end Antonio Smith said he was fined by the NFL for kicking at Miami Dolphins guard Richie Incognito in the Texans win on Sunday over the Dolphins.
However, Incognito was not fined.
"I am fined, $21, 000," Smith said.
"I'm going to appeal it," Smith said. "I want them to take a good look at it.
"If you're going strictly by the rule book, me kicking him was breaking the rules, but I want them to look at the reason why I was kicking him, trying to get him off of my ankle.
"You see on the film the moment my ankle came free I stopped. I was just trying to get my ankle free from him mauling it or whatever you want to call it."
Smith is disappointed that the NFL punished him and not Incognito.
"I'm definitely upset that he was not punished, especially if I'm the only one whose getting fined in the ordeal, when all I was trying to do was get him off of me on that particular play," Smith said.
Smith hopes his appeal will provide him with some justice.
"I think they need to go back and take a look at the film, because obviously he's sitting there squeezing and twisting my ankle," Smith said."
"There's no way you can say he's trying to keep me from getting the fumble. He never raises his head up. He never looks around for the ball. He goes right for my ankle and then you see in his posture that he's not just trying to hold me there."
Smith said he was simply trying to defend himself
"I was trying to get him off my leg and if you can't see that on the video, then something's wrong with your eyes," Smith said.
"I would hope they would take a good look at it and asset it justly. If they judge it accordingly it should come out I was defending myself."
Smith said on Sunday he thought Incognito was playing outside the rules the entire game, yet he is the only who has been punished.
"It's very disappointing whenever you lose money," Smith said. "Nobody wants to lose money, especially $21,000.
"That could be going to my daughter's or my son's trust fund. That's a pretty penny and nobody would like that, especially when I feel like I was defending myself."