The Chargers began preparation for Sunday's showdown with the Chiefs minus two of their offensive centerpieces.
Running back Ryan Mathews and wideout Keenan Allen both missed Tuesday's practice, according to Michael Gehlken of U-T San Diego.
Mathews hasn't played since injuring his ankle in Week 14, while Allen remains week-to-week with the broken collarbone he sustained in a Week 15 loss to the Broncos. While coach Mike McCoy says it's possible Mathews will suit up Sunday against the Chiefs, it's fair to wonder if Allen will even play again this season, the story went on to say. Eddie Royal seemed to benefit the most without Allen in the lineup as did TE Antonio Gates. Dontrelle Inman also had a nice game at WR for the Chargers last week.