Brock Purdy still maintaining ‘chip on shoulder’ after lucrative 49ers contract

Quarterback Brock Purdy has experienced a lot in the NFL, even if he has yet to reach three full seasons as the 49ers’ starter.Purdy has gone through his share of highs, for sure. He has also experienced some disappointing physical setbacks that sidelined him along the way.But there is no doubt how the organization views him.The 49ers made a long-term commitment to him in the offseason with a five-year, $265 million contract extension.Purdy said he partly considers himself a young, growing quarterback while also feeling in certain ways as if he is a seasoned NFL veteran.“I’m 25, and I still feel like there’s a lot more to prove,” Purdy told NBC Sports Bay Area. “I always have that chip on my shoulder. I have some experience, but there’s a lot more to prove and go through, but that excites me.”Veteran teammates marveled at how Purdy handled himself when he was called up in Week 13 of the 2022 NFL season after Trey Lance and Jimmy Garoppolo sustained season-ending injuries. Purdy did not look and act like a rookie.And once Purdy got on the field, coach Kyle Shanahan never considered having anyone other than him to lead his...