KANSAS CITY, Mo. (AP) — Chiefs quarterback Alex Smith will miss Sunday’s game against the San Diego Chargers because of a lacerated spleen. Chase Daniel will start in his place.

Team trainer Rick Burkholder said Friday that Smith was likely hurt on a hit during the third quarter of last weekend’s loss to the Steelers, but the quarterback didn’t have significant symptoms.

The lacerated spleen was diagnosed by a scan Thursday when Smith continued to experience mild discomfort after practicing all week. He will not need surgery and a full recovery is expected.

If the Chargers beat Kansas City, they make the playoffs. The Chiefs would need to win and have Baltimore and Houston lose to earn a postseason berth.

Smith would be out for a potential playoff game.

Daniel has one career start in six NFL seasons.