Tiger Woods has been forced to withdraw from his latest PGA tournament at Torrey Pines because of back pain.

The former World No 1 was 2-over par having only lasted 11 holes.

It comes just a week after he hit his career worst round of 82 at Phoenix.

Woods was playing in only his second tournament of the season after returning from surgery on a pinched nerve in his back.

Padraig Harringhton enjoyed a good start the former Open Champiopn is five off the lead on 3-under after a 69.

Shane Lowry will complete the final three holes of his round today but is already 3-over.