Kittle may be 31 years of age, but he appears to have plenty of game left in his tank. He recently agreed to a four-year, $76.4 million contract extension, which will not only keep him under contract through 2029 but also make him the NFL's highest-paid tight end.

San Francisco 49ers tight end George Kittle recently signed a four-year, $76.4 million contract extension, once again becoming the NFL's highest-paid player at his position.

The San Francisco 49ers checked off a major offseason to-do last week when they signed superstar tight end George Kittle to a massive contract worth $76.4 million, locking the six-time Pro-Bowler up for years to come while making him the highest-paid TE in the NFL.