THIRD ROUND LEADERBOARD:
-19 P Casey (GB) -15 M Kaymer (Ger) -14 G Storm (GB)
Selected others: -11 O Fisher (GB), S Gallacher (GB), P Harrington (Irl)-8 S Garcia (Spr), S Hansen (Den) -7 C Montgomerie (GB)
Casey last won two years ago
Paul Casey is in a commanding position going into the final round of the Abu Dhabi Championship.
Casey, the winner in 2007, moved to 19 under par after a nine-under round of 63, one shot off the course record and four clear of Martin Kaymer.
Graeme Storm is a further shot behind in third, ahead of Anthony Wall and Sweden's Johan Edfors and Peter Hanson.
Casey has had a two-year win drought since his victory here two years ago, but has managed 15 top-10 finishes.
Having begun the day in joint third place, Casey's round got off to a perfect start with birdies at the opening two holes.
He picked up further strokes on the seventh and long eighth to reach the turn in 32.
A wayward tee shot at the 10th caused him trouble, but he holed out from 40 feet to secure a birdie and took complete control with further birdies at the 12th, 13th and 17th.