NFL: Pittsburgh 20, Baltimore 7

PITTSBURGH, Dec. 26 (UPI) -- The Pittsburgh Steelers clinched home field advantage through the playoffs Sunday by beating Baltimore 20-7.

Rookie quarterback Ben Roethlisberger passed for two touchdowns before leaving the game with a rib injury in the third quarter. He was replaced with the Steelers leading 17-7 by former starter Tommy Maddox and Pittsburgh then added a 40-yard field goal by Jeff Reed.

Jerome Bettis ran for 117 yards for Pittsburgh but Baltimore's Jamal Lewis was held to just 26, including the Ravens' only touchdown, a 5-yard run in the first quarter.

Pittsburgh is 14-1, Baltimore 8-7.