Pádraig Harrington fired a second round of 67 at the Dubai Championship and now lies six shots adrift of leader and defending champion Antione Rozner.

Harrington, after an opening 68 went one better at the Jumeirah Golf Estates after carding seven birdies. Bogeys on two and six would eventually see him finish on nine under and in a share of 17th place alongside seven others.

Jonathan Caldwell also fired a 67 and moves to six-under par. A bogey at the second and a double-bogey five at the par-three 14th, the only blemishes in a round that contained eight birdies.

Rozner, who has not dropped a shot over the first two days, birdied six of his last eight holes to add a second round of 64 to his opening 65 and reach 15 under par, a shot ahead of JB Hansen and Francesco Laporta.

Finland's Kalle Samooja is a shot further back, with the English pair of Tommy Fleetwood and Paul Waring three off the lead on 12 under.

Rozner, who shot 25 under on the Fire Course at Jumeirah Golf Estates to win his maiden European Tour title last year, said: "I think I was playing really well, even on the front nine, but a few putts didn't drop.

"I just kept putting myself in good positions hole after hole and a few putts dropped on the back nine which was great. It was definitely one of my best ball-striking rounds out here.

"My long game was perfect, I was striping it shot after shot. I missed one green on 17 and that was the only hole I put myself in trouble but I got away with it with a good par.

"Stay aggressive is the mindset, you have be aggressive over and over. I did that really well last year, obviously I can use that experience from last year and that's helping me.

"Last year I was so aggressive over four rounds and I think it's paying off this week so if I keep doing what I'm doing over the next two days, hopefully there will be a good result in there."