Carlson (calf) is active for Sunday's game at San Francisco, the Cardinals' official site reports. After three consecutive outings languishing behind fellow tight end Darren Fells in terms of snaps, Carlson nearly matched the former pro basketball player in Week 16, earning 28 versus Fells' 32. Nevertheless, Carlson failed to reach 20 yards receiving for the seventh time this season, which could expand to eight Sunday due to deep reserve Ryan Lindley getting the nod under center for the second game in a row.