Rapid Reaction: Houston Texans

HOUSTON -- A few thoughts on the Houston Texan's 27-24 loss to the Indianapolis Colts.

What it means: The Colts maintain their commanding lead in the AFC South. Kicker Randy Bullock missed three field goals, including the potential game-tying field goal, a 55-yarder.

Stock watch: Andre Johnson remembers well that so many people thought he was washed up last season before he had one of his best statistical years. He talked this week about how he didn't know why he wasn't a guy who caught more touchdown passes. Johnson became Keenum's favorite target early against the Colts. He caught 190 yards and three touchdowns in the first half. It was Johnson's first three-touchdown game of his long and illustrious NFL career. Keenum's ascent could be a major boon for the vet.

Phillips in for Kubiak: Halftime took a somber tone when Texans coach Gary Kubiak collapsed to his knees on the field. His face showed signs of being in pain. He left the stadium in an ambulance having never lost consciousness and was at the hospital with his family. Defensive coordinator Wade Phillips took over Kubiak's role for the rest of the game.

Foster hurt again: It was heralded as great news (by me) that Arian Foster was active against the Indianapolis Colts. And it was. Great news for the Texans offense. Well, it would have been if Foster stayed on the field. The running back suffered another back injury and only played in the Texans' first series. That series included zero runs. Foster left the game for good and left the Texans with one undrafted rookie and one backup running back who was toughing through broken ribs for a second straight game.

What's next: The Texans travel to Arizona to play the Arizona Cardinals.