A high ankle sprain carries a four-to-six week recovery timetable. Ryan Mathews didn't miss one game. The Chargers running back was clearly hobbled in the team's two playoff contests, not playing in the second half Sunday of a 27-20 loss to the Broncos. While Mathews declined to confirm, sources said his limitation was the result of a high ankle sprain. "It was tough," Mathews said Monday. "I wanted to be out there every play just to help them." He first injured the left ankle on Dec. 22 against the Raiders. After a brief visit to the locker room, he returned to the field in the fourth quarter and finished with 25 carries for 99 yards and a touchdown. The next week, he rushed 24 times for a career-high 144 yards versus Kansas City, helping the Chargers clinch a playoff berth.