The Kansas City Chiefs were rolling to what, for them, was going to be a comfortable win over the Cleveland Browns on Sunday when disaster struck late in the fourth quarter—Patrick Mahomes limped off the field after being sandwiched by a couple of defenders and didn't return to the game.

Kansas City Chiefs quarterback Patrick Mahomes suffered an ankle injury against the Cleveland Browns and is week-to-week. His ankle is not broken, and Chiefs head coach Andy Reid said that injury is just ‘sore’, but Ian Rapoport of ESPN says that the fears are Mahomes has suffered a high ankle sprain, which could force him to miss time.

The injury definitely comes at an inopportune time for the Chiefs, who just started a span of playing three games in 10 days. In the days leading up to the Browns game, Mahomes had actually complained about the fact that the NFL was forcing his team to play three games between Dec. 15 and Dec. 25.