Three Irish competitors are in action on day one of the World Matchplay Championship in California.
Paul McGinley plays Joe Durant, Padraig Harrington is up against Steve Flesch while Ulsterman Darren Clarke takes on Matt Gogel.
Clarke won the event two years ago in an epic struggle with Tiger Woods.
The world no.1 meanwhile, meets Australian Peter O'Malley in the opening round this year, while defending champion Steve Stricker takes on the highly-rated Chris DeMarco.