PHILADELPHIA — Chants of “PUR-DY! PUR-DY!” rained down from jubilant 49ers fans in the stands as Brock Purdy triumphantly ran off Lincoln Financial Field in December 2023. Only 10 months earlier, Purdy felt “shocks” of pain in his right elbow, unable to throw because of a shredded ligament in an NFC Championship Game loss that ended the 49ers’ Super Bowl bid and cast his career in peril. The thrill of victory, the agony of defeat. Which is next for Purdy in Philly? Sunday’s wild-card playoff game between the No. 6-seed 49ers (12-5) and the No. 3-seed Eagles (11-6) could again hinge on Purdy’s arm — and legs, brain, “Dougie” dance moves, or any other intangible to keep a most...
