Matt Forte ran for 145 yards and a 18 victory at Wembley Stadium.

Jay Cutler completed 17-of-32 passes for 226 yards and a touchdown against two interceptions, while Marion Barber ran for a score for the Bears (4-3).

Tampa Bay, already without starting running back LeGarrette Blount, lost backup Earnest Graham in the first quarter. Kregg Lumpkin spelled Graham, registering just 15 yards on eight carries.

Josh Freeman threw for 264 yards and a pair of fourth-quarter touchdowns for the Buccaneers (4-3), but was intercepted four times, the last of which -- by D.J. Moore -- came with under a minute remaining, sealing the final result.