The quarterback scrambled for a yard on third down but had his ankle caught underneath on the tackle. Stroud is one of the only Texans to avoid the injury bug this season, starting all 17 games. If Houston wants to pull off the upset, it rests on the right arm of Stroud.

The origin of one of the biggest plays by the Chiefs’ defense — Karlaftis’ 16-yard sack of Houston quarterback C.J. Stroud, on fourth down in the fourth quarter — could be traced to a practice session that took place two days earlier.