Though the news was expected, it is still big for the Broncos, who are losing starting running back Doug Martin. Depth has been an area of concern, but that is alleviated now that Harper will officially return.
Injuries have taken a toll on Harper throughout his career at Boise State. He has torn his ACL twice, limiting him to three games in 2009 and three games in 2010. A sprained ankle hobbled him last season, but Harper still had 557 yards and nine touchdown runs.