So nobody should have been surprised by Peters' response in his return from a one-game suspension. Peters announced he was back in a way that only he can, by intercepting two Philip Rivers passes to help the Chiefs to a crucial 30-13 victory over the Los Angeles Chargers on Saturday night. The win at Arrowhead Stadium makes Kansas City once again the heavy favorite to win the AFC West.
"Definitely not surprised," quarterback Alex Smith said. "Not to say I knew but definitely not surprised. He's such a competitor on top of the kind of player he is. He's got amazing ability ... such great feel for the game."
The win made the Chiefs 8-6 and gave them sole possession of first place in the division. The Chiefs would clinch the AFC West title by winning either of their two remaining games. They play against the Miami Dolphins on Christmas Eve at Arrowhead and against the Broncos in Denver on New Year's Eve.
Peters' interceptions, both in the second half, were key plays in a key victory. They validated coach Andy Reid's decision to put him back in the lineup a week after the Chiefs played one of the best defensive games of the season without him in a win over the Oakland Raiders.
"He was great all week and he was great today," Reid said.
"I don't think he was out trying to prove anything to anybody. He doesn't have to. He's a Pro Bowl corner."
The Chiefs held the Raiders scoreless last week until the fourth quarter, so they had a good thing going without Peters. His return held the potential to disrupt everything, but in their locker room during the practice week it seemed like a non-issue.
"When he came back, guys accepted him with open arms," cornerback Darrelle Revis said. "There were no issues or anything. We just went on to really focus on the Chargers because we knew how important this game was for us as a team and we kind of left that behind."
On his first interception, Peters made a maneuver he's made before. He peeled off the receiver he was covering to make the play.
"Marcus was hanging on my route and he was playing his guy at the same time," safety Ron Parker said. "The kid is smart. He knows the game. I sat and watched the ball in the air and I knew Marcus was going to be there. He did a good job of finding the ball and making the play he always makes.
"That's what Marcus (does). His IQ of the game is through the roof. He's young, but his IQ and knowing how teams try to attack us is through the roof."