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Clyde Edwards-Helaire had begun to establish a bigger role in the Chiefs' offense coming into Sunday night's showdown with the Bills, topping 100 yards on the ground in each of Kansas City's previous two games. But he didn't get a full chance to make it three straight against Buffalo, leaving Week 5's prime-time game with a knee injury. Following the Chiefs' 38-20 loss, we're now getting a clearer picture as to what sort of injury the former first-round pick is dealing with. 

According to CBS Sports NFL Insider Jason La Canfora, Edwards-Helaire suffered a sprained knee and is expected to be out for a few weeks, possibly returning next month. The second-year back saw his leg bend awkwardly on a third-quarter carry and was helped off the field by teammates before exiting to the locker room, where he was quickly ruled out for the remainder the game. 

Edwards-Helaire. initially got help from Tyreek Hill and fellow running back Darrel Williams on his way off the field, then received attention in the Chiefs' medical tent before leaving the field. It wasn't long before the team officially ruled him out, suggesting his knee injury might have been serious. Thankfully for Edwards-Helaire and the Chiefs, the injury was not quite as bad as it appeared at the time, albeit with him still slated to miss time.  

With him sidelined, Kansas City will be forced to lean on Williams and No. 3 man Jerick McKinnon out of the backfield. Williams carried the ball five times on the night for 27 yards while catching three of his five targets for 18 yards. McKinnon hauled in both of his targets for 13 yards. 

Before going down with the injury, Edwards-Helaire finished Sunday's game with just 13 yards on seven carries, as well as 11 yards on one catch, working against a tough Bills defense.