Chiefs RB Clyde Edwards-Helaire sprained the MCL in his left knee in Sunday night's loss to the Bills. NFL Network's Ian Rapoport reports that the injury will keep him out for "a few weeks." Kansas City has just Darrel Williams and Jerick McKinnon behind Edwards-Helaire on the roster, with Derrick Gore the only RB on the practice squad. We'd bet on them adding someone else this week, though anything short of a trade is unlikely to bring in a RB with immediate fantasy football relevance. Williams figures to be the lead back for an upside scoring matchup with Washington in Week 6. After that come soft RB matchups with the Titans, Giants and Packers.