Cincinnati Bengals defensive tackle Bryan Robinson is nursing a sprained foot and could miss Sunday's game against the Baltimore Ravens. Robinson sported a walking boot on his foot Wednesday and is listed as doubtful against the Ravens. He apparently suffered the problem during last Sunday's loss against Indianapolis. The nine-year pro out of Fresno State has started nine games this season, recording nine tackles. Robinson, who also has played for the Rams, Bears and Dolphins, owns 17.5 career sacks with 288 stops in 127 contests. He signed a three-year contract with the Bengals in March 2005. According to head coach Marvin Lewis, Shaun Smith and Matthias Askew will see more practice time in preparation for the Ravens.