Northern Ireland’s Graeme McDowell slipped down the leaderboard following a frustrating day at the Maybank Malaysian Open.
McDowell – who led with Lee Westwood after day one – could only card a second round of one over to finish the day in eighth spot – six adrift of the lead.
The Portrush golfer hit three bogeys and a double bogey during a round of 73.
Westwood and Alejandro Canizares share the lead on 11 under par at the halfway stage.
Westwood, the defending champion, started the day level with McDowell on six under and registered his first birdie on four in Kuala Lumpur.
A bogey on the par-five fifth set him back, but he birdied seven before playing an impressive back nine where he registered four under-par scores.
The Englishman played a neat bunker shot at the 10th, before holing a 12-footer at the 13th and a solid approach saw him able to hole from six feet at the 16th.
Westwood went three clear of the rest after a 20-foot putt for birdie at the last, but Spaniard Canizares was closing in.
Starting the day in sixth, Canizares birdied one, five and eight on the front nine, before scoring four more on the back, including a 20-footer at 15 in a blemish-free round.
Westwood had an impressive opening three rounds in the Gulf last week before a level-par 72 on Sunday in Dubai ruled him out of challenging winner Rory McIlroy.