Chargers OC Frank Reich said Ryan Mathews will remain the main back in San Diego.
ESPN's Eric D. Williams said the Chargers will continue to "lean on" the running game this season.
Ryan Mathews led all running backs in fantasy points per snap last season.
Ryan Mathews is up to 222 pounds after weighing in at 215 last preseason.
Ryan Mathews believes the Chargers' addition of Donald Brown will help him hold up physically in 2014.
Chargers GM Tom Telesco confirmed that Ryan Mathews remains "our bell cow."
The Chargers ranked 28th in the NFL in goal-line efficiency in 2013.
The Union-Tribune San Diego reports the ankle issue that hampered Ryan Mathews during the playoffs was a high-ankle sprain.
Ryan Mathews managed 26 yards on five carries as the Chargers lost Sunday's Divisional Round game in Denver.
Ryan Mathews is active for Sunday night's Divisional Round game at Denver.
NFL Network's Ian Rapoport reports the Chargers expect Ryan Mathews (ankle) to play Sunday against the Broncos.
Ryan Mathews (questionable, ankle) was spotted in a brace during Friday's practice, and walking around "gingerly."
Asked Friday whether Ryan Mathews (questionable, ankle) will play in Sunday's Divisional Round game at Denver, a Chargers team source replied "That's the plan."
Ryan Mathews (questionable, ankle) missed his third straight practice Friday.