Kansas City, Mo. ? Quarterback Brodie Croyle missed Kansas City’s practice Wednesday because of a sore back, and his availability for this week’s game against San Diego could be in question.

Croyle, making his second start, was kicked in the back early in the Chiefs’ 20-17 loss to Oakland on Sunday. He played the rest of the game, but has been too sore to do much all week.

If Croyle can’t play Sunday, veteran Damon Huard will get the start. Huard was 163-of-262 for 1,766 yards, with eight touchdowns and 11 interceptions, in nine games before Croyle was made the starter.