Broncos' Peyton Manning remains uncertain about future

The Denver Broncos face a number of questions as they head into the offseason, and it doesn't appear likely they'll get an answer to the most important one any time soon.

Quarterback Peyton Manning's future remains up in the air, as his decision on whether to retire or continue his career could go either way, according to NFL Network's Ian Rapoport.

Manning's 2014 season proved that he can still play at an extremely high level when healthy, but the Broncos' recent coaching changes could certainly impact his eventual decision.

The 38-year-old finished the 2014 season with 4,727 passing yards and 39 touchdowns, carrying the Broncos to a 12-4 record and the team's fourth consecutive AFC West title.