The San Francisco 49ers are under fire...from their ownership and even a front office family member.

After San Francisco lost 19-3 to defending Super Bowl champion and its rival Seattle Seahawks on Thanksgiving night, 49ers owner Jed York immediately took to his Twitter account to rip his team. 

"Thank you #49ersfaithful for coming out strong tonight. This performance wasn't acceptable. I apologize for that," York tweeted out 88,000 followers.

When reporters briefed 49ers coach Jim Harbaugh and players about York's tweets, they received a mixed reaction during their postgame interviews. 

"I don't know about tweets," Harbaugh said, as reported by ESPN. "We will do what we have to do as a football team. Set our jaw to doing that."

San Francisco's franchise quarterback Colin Kaepernick, however, agreed with York following his poor performance Thursday night of 121 yards passing with two interceptions and no touchdowns. 

"It's not acceptable," Kaepernick said. "We didn't play well, we didn't perform well. We have a much higher standard for ourselves."

Just when it looked like the bashing was done, though, the daughter of Niners general manager Trent Baalke tweeted her disgust with the team's offensive coordinator Greg Roman in the wee hours of Friday morning.

"Greg Roman can take a hike...the 49ers don't want you no more," Baalke's daughter, Cassie Baalke, tweeted. "Everyone's entitled to an opinion...sorry mine doesn't favor you or agree with yours."

Baalke's tweet has since been deleted, according to reports. The darts thrown by San Francisco's ownership and Baalke's daughter only pile onto a tough 49ers season, which has been rumored to be Harbaugh's last as head coach of the team. The Niners (7-5) will look to rebound Sunday against the Oakland Raiders, before their rematch with the Seahawks on December 14. 

Watch Kevin Hart in a new episode of Real Husbands of Hollywood every Tuesday, 10P/9C. 

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(Photo: Michael Zagaris/San Francisco 49ers/Getty Images)