Davis has started two games total over the last two seasons but appeared in all 32. In two years for the Chiefs, he has rushed for 705 yards and 10 touchdowns while averaging 3.5 yards per attempt.
Charles has been Kansas City's starting running back for the last three seasons. He has rushed for 6,856 career yards and 38 touchdowns and has rushed for 1,000 yards five times over his career.
In 2014, the 28-year-old Charles ran for nine touchdowns across 1,033 yards.
Davis said that despite his feelings that there isn't a gap in ability, he knows his role on the team right now is to back Charles up.
“Be available and stay healthy and when Jamaal needs a blow, I’ll go,” Davis told ESPN.com. “When it’s my turn, I’ll turn it on.”
The Chiefs finished 9–7 last season and came in second in the AFC West but missed the playoffs.
- Molly Geary