Boller had TD pass
Boller was 10-for-21 for 112 yards with one touchdown and one interception. He was replaced by Chris Redman with the Ravens trailing 21-19.
It was unclear when Boller was injured. The rookie first-round pick has started all nine games for the Ravens.
Boller handed the Rams a touchdown in the second quarter when a blitzing Adam Archuleta stripped him of the ball and returned it 45 yards to put the Rams ahead 21-12.
Copyright 2003 by The Associated Press