NFL Network's Ian Rapoport reported on Tuesday that Kittle and the 49ers agreed to terms on a four-year, $76.4 million extension that will make him the league's highest-paid tight end. The 49ers entered the day with $39.4 million in cap space, not accounting for any potential changes to Kittle's cap number with his new contract.

Brock Purdy, who has been discussing a new deal with San Francisco, is in attendance Tuesday for the start of the team's voluntary offseason workout program but tight end George Kittle, who is also seeking a new deal is not.