"Christian, I still think he's got years left on the legs," Kittle said. "He still looks great. You should see the way that he works out, the way that he trains, the way that he takes care of his body in the offseason. He's very dialed in."

USA Today's NFL experts make their picks for a Week 15 showdown between the San Francisco 49ers and Tennessee Titans

The Week 15 matchup for Cooper Kupp and the Seattle Seahawks has them taking on the Indianapolis Colts at 4:25 p.m. ET on Sunday, Dec. 14. Watch Cooper Kupp and the Seahawks vs. C