All-Pro left guard Mike Iupati is unlikely to be cleared to participate in the San Francisco 49ers ' offseason team activities following shoulder surgery. The nature of the procedure isn't known, but Iupati was on the injury report for the final seven games last season, including the postseason, with a shoulder injury. Iupati has started all 48 regular-season games in his career and played nearly 99 percent of the 49ers' offensive snaps last

All-Pro left guard Mike Iupati is unlikely to be cleared to participate in the San Francisco 49ers ' offseason team activities following shoulder surgery. The nature of the procedure isn't known, but Iupati was on the injury report for the final seven games last season, including the postseason, with a shoulder injury. Iupati has started all 48 regular-season games in his career and played nearly 99 percent of the 49ers' offensive snaps last