49ers’ Brock Purdy talks about his swift but rusty return to practice

SANTA CLARA — Taylor Swift’s “Shake It Off” anthem blared from the practice-field speakers as the 49ers stretched for their second practice of training camp. Yes, Ms. Swift is coming to Levi’s Stadium for Friday and Saturday night shows. But there was no doubt who Thursday’s headliner was: Brock Purdy. Shake it off? Purdy had more to do than that in the past 179 days. Come Thursday, he reprised his role as the first-string quarterback in practice, and, when that happened, a more appropriate song serenaded the 2022 rookie sensation:...