Rogers says he's still Niners' starter

SANTA CLARA, Calif. -- Carlos Rogers is confident he's still the 49ers' starter at left cornerback, even if Nnamdi Asomugha's arrival could prove otherwise. "There's going to be competition for cornerback," Rogers said Tuesday after the start of organized team activities. "(Asomugha) is going to have a big role. They didn't bring him in to sit on the bench." Rogers has started every game since signing as a free agent in 2011. But the 49ers' pass defense proved vulnerable in the playoffs, culminating with a Super Bowl loss to the Baltimore Ravens. "I'm told I'm a starter," Rogers said, referring to Tuesday's OTA rotation list. "But I go in each and every day thinking someone can take my...