On the 49ers' next possession, though, Davis caught a 24-yard pass from Kaepernick and held on after absorbing a hit from the Ravens' Reed. The play set up San Francisco's first score, a 36-yard field goal from David Akers.

Davis made even more of an impact in the second quarter. He caught consecutive passes, including a 29-yard reception in which he ran past Ravens linebacker Ray Lewis, who failed to keep up with the younger, faster playmaker.

Crabtree makes amends

Crabtree dropped a long pass from Kaepernick with 8 minutes, 32 seconds left in the third quarter, a play that could have given San Francisco's struggling offense its biggest play of the still-young game.

Instead, Crabtree, who had a half-step on Graham, was unable to convert the play inside the Baltimore 20.

He did later catch a momentum-changing 31-yard touchdown pass in the third, beginning San Francisco's rally.

Ravens take advantage

Early in the first quarter, linebacker Ahmad Brooks' offside penalty on third down gave quarterback Joe Flacco a second chance to convert on the Ravens' opening possession. Flacco took advantage, finding wide receiver Anquan Boldin for a 13-yard touchdown. San Francisco was penalized five times for 33 yards.

Big play for Walker

Delanie Walker's 28-yard sliding catch with 1:12 left before halftime in the first half set up Akers' second field goal of the first half. Walker caught three passes for 48 yards.