QB Watch: 49ers' Colin Kaepernick

A weekly examination of the San Francisco 49ers’ quarterback play.

Rewind: Colin Kaepernick had his second straight poor performance in Week 3, a 27-7 home loss to Indianapolis. Kaepernick threw for 150 yards, but most of it was in garbage time. He had two completions in the first half. Kaepernick has thrown for 277 yards in the past two games combined after tossing for a career-high 412 yards in Week 1 against Green Bay.

Fast-forward: Kaepernick doesn’t have much time to fret about his issues. The 49ers play at St. Louis on Thursday night. Kaepernick completed 32 of 49 passes against the Rams last season. The Rams' defense allowed Dallas’ Tony Romo to throw three touchdown passes in a 31-7 Dallas win Sunday.

Downfield daze: Last season, Kaepernick enjoyed success throwing the ball 10 yards or farther. But the past two games, Kaepernick has completed just 2 of 13 passes on such plays. That type of futility allows defenses to tee off on an offense.

Prediction: Kaepernick should improve Thursday. The 49ers have real receiving issues, and tight end Vernon Davis is dealing with a hamstring injury. I don’t see Kaepernick having a great night, but I see him completing 18 of 31 passes for 242 yards and two touchdown passes.