Defending champion Lee Westwood sits at the top of the leaderboard at the halfway stage of the Malaysian Open.

The Englishman suffered just one bogey in a five-under 67 round and shares the clubhouse lead with Alejandro Canizares, who is 11-under for the tournament.

Graeme McDowell shared the lead with Westwood yesterday, but has dropped six shots off the pace following a frustrating second round, which included three bogeys and a double bogey on the 12th hole.

Bernd Wiesberger is three shots off the pace after carding a second-round 66 with seven birdies and a bogey, which was the only blemish on his day.

Last year's Europe Ryder Cup captain Paul McGinley had a poor round as he hit four bogeys and a double bogey to leave himself tied-53rd in the field.