"Oh yeah, happy birthday Coach Harbaugh," Sherman told NFL Network's Michelle Beisner on Sunday night, moments after Seattle's 42-13 win. "Hope you enjoyed it."
Harbaugh didn't give the media much in his postgame availability, maintaining a low-key demeanor in describing his team's poor effort in a game that could've clinched the NFC West for San Francisco. He did confirm Colin Kaepernick will remain the starting quarterback next Sunday, when the 49ers try to clinch the division title against the Arizona Cardinals.
On Sunday, Kaepernick completed 19 of 36 passes for 244 yards and one touchdown with an interception as he led an offense that looked nothing like the unit that poured it on against the New England Patriots last week.
Kaepernick's huge game in Foxborough had the effect of pushing backup Alex Smith into the deep background. That's likely where he'll stay for the balance of the season.
Follow Dan Hanzus on Twitter @DanHanzus.