LUKE DONALD will defend his Target World Challenge title this week admitting he has his work cut out to claim back-to-back wins.
Donald came from six shots behind on the final day with a closing 64 last year, beating Ryder Cup team-mate Darren Clarke to the £665,753 first prize.
But the 29-year-old was hardly full of confidence as he travelled to California to take on the likes of world number one Tiger Woods after a disappointing World Cup.
"It's a tricky course and if you're off line a bit you can make some big numbers. You really have to be good with your irons," he said.