The Kansas City Chiefs' loss in last season's Super Bowl remains a source of motivation for the defending AFC champions, but it's also a loss the team is content to leave in the past.

After all, a lot of work still needs to be done before the Chiefs can book a third straight Super Bowl appearance next month. The road begins when the Chiefs host the Pittsburgh Steelers in the wild-card round on Sunday.

"It's in the back of my mind, but for the most part it's a new year," Chiefs tight end Travis Kelce said about the NFL's ultimate prize. "You've got to focus on things that have happened this year. We're on a goal to prove to ourselves who we think we are, and we know we are, and that's Super Bowl champions."