Brock Purdy looks good in return

49ers HC Kyle Shanahan likes what he's seen from QB Brock Purdy in camp so far. "I think he's done great," Shanahan said. "He has come back. He's had no arm troubles. He's been totally healthy. I think he's getting all his timing back, his rhythm. I was really impressed with him in his two practices." Purdy remains the favorite to open the season as San Francisco's starter.