KANSAS CITY, Mo. -- Wanya Morris , the Kansas City Chiefs ' backup left tackle, sustained a season-ending left knee injury during Sunday night's game against the Houston Texans , sources told ESPN's Adam Schefter.

Starting in place of the injured Josh Simmons , Morris suffered his injury on the game's opening snap when he appeared to be rolled up on by center Creed Humphrey while run blocking. Within minutes of having to be assisted off the field, Morris was taken to the locker room on a cart. He was later seen leaving the locker room on crutches.

Morris was replaced by undrafted rookie Esa Pole , who made his NFL debut after being elevated to the active roster this past week. Pole was impressive, too, especially when matched up with Texans pass rusher Danielle Hunter . In

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