The 49ers are seeking a lucrative extension with Brock Purdy. His teammate, George Kittle, has given him advice about negotiating with the team.

As George Kittle has experienced, contract extension talks can be perhaps the most stressful thing for an NFL player in their career. Generally speaking, they only happen a few times in the career of a player like Kittle,

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.