Source - 49ers QB Brock Purdy has torn UCL in right elbow - ESPN
San Francisco 49ers QB Brock Purdy suffers complete UCL tear
Tom Brady weighs in on impact of Brock Purdy injury in 49ers
NFL approves bylaw to allow third QB to dress on gameday - Sactown
NFL World Reacts To The Brock Purdy Injury Announcement - The Spun
Report: 49ers' Purdy has UCL tear, hopes to avoid Tommy John
49ers' Josh Johnson Replaces Injured Brock Purdy
Kyle Shanahan, 49ers expect Brock Purdy back by training camp
Oof: It's a Full UCL Tear for 49ers Quarterback Brock Purdy
Brock Purdy injury update: 49ers QB 'couldn't throw anything over
49ers George Kittle's question to QB Brock Purdy about arm injury