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(Reuters) - Top seed Rory McIlroy has been grouped with three highly-rated Americans for this week's WGC-Cadillac Match Play Championship in San Francisco.
A draw on Monday put Northern Ireland's world number one up against reigning FedExCup champion Billy Horschel, seven-times PGA Tour winner Brandt Snedeker and major champion Jason Dufner in round-robin play starting on Wednesday at TPC Harding Park.
The Match Play Championship, the first of the season's elite four World Golf Championships (WGC) events, was a knockout event from its inception in 1999 until last year, which meant that many of the big names were sent packing on the first day.