Patrick Willis questionable for Sunday

SANTA CLARA, Calif. -- There were no surprises on the San Francisco 49ers injury report Friday.

As expected, linebacker Patrick Willis (groin), tight end Vernon Davis (hamstring) and tackle Anthony Davis (shoulder) were all listed as questionable. Willis is probably the biggest question.

But if he doesn’t have a setback Willis could play. He missed last week’s game at St. Louis with a groin injury that knocked him out of the third quarter of a Week 3 loss to the Colts. Thursday, San Francisco defensive coordinator Vic Fangio said Willis is more than “50-50” to play.

Willis will likely be a game-time decision. Michael Wilhoite will take his place against Houston if Willis can’t play Sunday.

Meanwhile, the NFL confirmed a Bay Area News Group reported 49ers defensive lineman Justin Smith was fined $7,875 for a facemask penalty against the Rams. Safety Donte Whitner was previously fined $21,000 for a hit in the game. Whitner is appealing the fine.