Ken Karcher threw for one touchdown and Ken Bell ran for another late in the game to cap a 33-point second half comeback as the Denver Broncos beat the mistake-prone Los Angeles Rams 40-31 in an NFL exhibition game Wednesday night.

The Broncos capitalized on two fumble recoveries deep in Los Angeles territory as they rallied from a 31-27 deficit with 6:21 remaining.Denver's Tony Dorsett, who ranks fourth on the all-time NFL career rushing list and was acquired from the Dallas Cowboys during the offseason, gained 27 yards on 10 carries and caught two passes for six yards in his Broncos' debut.