Owen Daniels has scored the only touchdown of the first half to help the Baltimore Ravens to a 10-3 lead over the Pittsburgh Steelers at the break.
Baltimore were put onto the back foot early on as they defended a 12-play drive from the Steelers, but Daryl Smith relieved the pressure by forcing a fumble.
The Ravens would strike the first blow with just over six minutes remaining in the opening quarter when Joe Flacco earned himself space before picking out Daniels with a short pass to set up the first touchdown.
Fluency proved to be difficult to come by for both quarterbacks in the second quarter, but Baltimore managed to extend their lead thanks to a 30-yard field goal from Justin Tucker.
Pittsburgh's Ben Roethlisberger saw his options limited throughout the first half, and the Steelers were made to settle for a Shaun Suisham field goal before the interval as they reduced the deficit.