The draw is out for this week's PGA golf championship in Kentucky and Tiger Woods has been grouped with fellow American star Phil Mickelson and Irishman Padraig Harrington for the first two rounds.
But Woods is far from certain to tee off on Friday morning after aggravating the back injury which has kept him away from tournament play for much of this year.
The new world number one Rory McIlroy will play alongside Martin Kaymer and Bubba Watson, the winners of this year's first three major championships.
