(CNN) -- Englishman Paul Casey ended two years without a title on Sunday -- eventually claiming a narrow one-shot victory in the Abu Dhabi Championship despite holding a six-stroke lead with six holes still to play.
Casey secured his first title since winner in Abu Dhhabi two years ago, despite a nervous final few holes.
Casey, whose last victory was in the same tournament two years ago, posted three bogeys on his homeward nine, while South African Louis Oosthuizen was carding an eight-under-pat 64.
However, Casey held his composure to par the last four holes for a 70 and finish with a 72-hole total of 267 (-21).
Defending champion Martin Kaymer of Germany eagled the last for a 67 to tie with Oosthuizen on 268, while Englishman Anthony Wall was alone in fourth place after his 67 gave him a total of 270.
British Open and US PGA champion Padraig Harrington carded a 66 to finish in a share of fifth position while world number two Sergio Garcia matched Oosthuizen's 64 to climb into a tie for eighth place on 272.
Having slipped from 12th in the world to outside the top 40, the ninth European Tour title of his career should take 31-year-old Casey closer to the top 20 once again.
"That was a bit of a nervous one," the former World Match Play champion told PA Sport. "I started off great, but it was tricky coming in.
"The greens were exceptionally difficult to read and there were a couple of camera clicks which put me off. It feels very satisfying to get my hands on the trophy again.
"I didn't think I would have to wait so long. My game is now better than it's ever been and I've played some great stuff in spurts, but I've never really put it together.
"I've been focused very much on the majors, and performed well, and maybe neglected other tournaments. That's what I'm trying to do and it looks like it's paying off."