The league fined Watt -- the league's co-leader in sacks -- for "forcibly hitting in the knee area or below" in the Steelers' 41-17 win over the Falcons on Sunday.
Watt was called for roughing the passer on the play, which came in the second quarter. He said after the game that he was surprised by the call.
"I understand the rules. I'm not a dirty player," Watt said. "I tried to pull off him at the end. Whether the ref saw it or not, I understand why they call it. It was a low hit. But I tried to pull my arms off. ... It puts us in a bind because I don't know what else I can do."
T.J. Watt sacked Ryan three times in the game, including a strip-sack that resulted in a...