LAS VEGAS -- Danica Patrick is sore this week but not just from her vicious wreck in last Sunday's Sprint Cup race at Phoenix.

Patrick said she was left with a headache and stiff neck following her wreck when her right-front tire blew and she slammed into the Turn 4 wall and then the car of driver David Ragan.

If that wasn't enough, Patrick said Friday she also got hit in the head Thursday night by a rock while attending a race at a local dirt track.

"I feel like I got a concussion last night when I got hit with a rock at the dirt track," Patrick said. "It's really sore. It hit me straight in the head and I went to the ground.

"Good thing I had a hat on or I feel there would have been blood."

Patrick was already cleared to compete this weekend.

(c)2013 The Charlotte Observer (Charlotte, N.C.)

Visit The Charlotte Observer (Charlotte, N.C.) at www.charlotteobserver.com

Distributed by MCT Information Services