Brock Purdy will enter his fourth season this year and we're starting to learn exactly who he is. In the first half of games, he's great. He has thrown 35 touchdown passes and just 8 interceptions and his career passer rating before halftime is 106.

A look at the quarterback's strengths and shortcoming as the 49ers begin negotiating a new, multiyear contract.

Entering his fourth NFL season, Purdy is due for a contract extension, which Sports Illustrated’s Grant Cohn claims the 49ers will structure by using Green Bay Packers star quarterback Jordan Love’s deal as an example. “Brock Purdy's contract extension probably won't be nearly as expensive as it seems,” Cohn said.