CHICAGO -- The Chicago Bears scored with 15 seconds left to beat the Steelers tonight, 17-14, at Soldier Field.

Robbie Gould kicked a -yard field goal to win it for Chicago (1-1). His kick came moments after Jeff Reed missed his second field goal attempt of the fourth quarter.

Reed, one of the best kickers in the league, missed twice in the fourth quarter, from 38 and 43 yards. The last one came with 3:18 to go and the game tied.

The Bears tied the Steelers 14-14 with 6:21 left in the game, starting their 72-yard drive after Jeff Reed missed a 38-yard field goal.

Reed seemed to slip on the new sod that was installed in the middle of the week, and the surface did not improve during a intermittent downpour. The attempt sailed wide left.

Chicago took advantage right away and scored on Jay Cutler's seven-yard pass to rookie wide receiver Johnny Knox, who beat Tyrone Carter on a slant on third down.

The Steelers failed to hold a 14-7 lead they took into the fourth quarter after scoring on Ben Roethlisberger's two-yard bootleg around left end with 5:26 left in the third. He leaped over safety Danieal Manning at the goalline and landed on his shoulders, but bounced back up.

That score broke a 14-7 tie and also may have been the ceremonial beginning to Rashard Mendenhall's career. He ran 39 yards around right end to the Chicago two that set up the go-ahead touchdown.

Earlier in that drive, Mendenhall fell down as he caught a pass thrown behind him in the flat, got up, ran the other way and ended up gaining 13 yards on the broken play.

Two long touchdown drives, one by each team, had the game knotted at 7-7 at halftime.

The Bears tied the game with 19 seconds left in the half on Jay Cutler's 6-yard pass to tight end Kellen Davis. That ended a 97-yard, 13-play drive that got jump-started when James Harrison hit Cutler late on the first play for a 15-yard penalty.

The Steelers scored in the first quarter when Ben Roethlisberger threw a 1-yard touchdown pass to tight end Matt Spaeth to cap a successful 92-yard drive on 13 plays, the first of the game for the Steelers. Roethlisberger completed 8 of 9 passes for 84 yards on that drive.