SANTA CLARA, Calif. -- All 53 San Francisco 49ers practiced Thursday as they close in on preparations for Sunday's NFC Championship game at Seattle.Pro Bowl linebacker Ahmad Brooks appears to be on track to play Sunday. He missed Wednesday's practice with what he said was a "severe head cold." However, he practiced fully Thursday. Barring a setback, Brooks should be fine.Cornerback Carlos Rogers (hamstring) and fullback Will Tukuafu (knee) remained on track to play as they were limited for a second straight day.