Kam Chancellor played the Super Bowl Sunday with a torn medial collateral ligament in his left knee, along with a bone bruise, the Seahawks strong safety told the team’s website, seahawks.com, Wedneaday. News that he was injured in practice Friday was released by a pool report, but the extent was not known.

“My injury happened two days before the game and they told me I wasn’t going to be able to play,” Chancellor said of his conversation with team doctors. “They told me, ‘Torn MCL and bone bruise.’ I was mad. I was frustrated. But at the end of the day, I was able to play.”

Playing with a brace, Chancellor made 10 tackles, but it was apparent on several plays he lacked his usual closing speed. The Patriots scored two fourth-quarter touchdowns and QB Tom Brady completed 13 of 15 passes in the period to win 28-24.

The story did not say what the prognosis was, but such tears usually require surgery.

“It’s not a matter of talking about being injured and playing, it’s about being grateful for getting the opportunity to still even play through the injury,” he said. “There are some people that get injured and can’t even play a game. So you’ve got to be grateful for how you’re feeling at the moment.”

If he has surgery, he will join at least two other Legion of Boom members, CB Richard Sherman (elbow) and CB Jeremy Lane (broken arm) who are booked for off-season repairs. A fourth, FS Earl Thomas, may have surgery for a torn shoulder labrum.