Patrick Willis injures right hand

AP

The injury bug has been ping-ponging back and forth between San Francisco and Seattle.

A day after the Seahawks learned that receiver Percy Harvin will have hip surgery, 49ers linebacker Patrick Willis exited practice with a right hand injury.

According to Matt Maiocco of CSNBayArea.com, Willis apparently injured the hand during a blitz pickup drill, colliding with fullback Bruce Miller.  Willis, per Maiocco, then spent most of the practice with a large wrap on his right hand.

Willis remained on the field for the rest of the practice session, declining to sign autographs after practice by pointing to his hand.