Eight of the San Francisco 49ers' 11 rookie draft choices survived the NFL's mandatory reduction to 75 players Tuesday.The other three -- second-round choice Tank Carradine, fourth-rounder Marcus Lattimore and fifth-rounder Quinton Dial -- remain with the team while rehabilitating from injuries.Injuries were the theme Tuesday as the 49ers complied with the 75-man limit. There were no surprises.Receivers Michael Crabtree (torn Achilles tendon) and Mario Manningham (torn ACL) landed on the reserve/physically unable to perform (PUP) list.