Rory McIlroy fired a second-round 65 to move to within two shots of the lead at the KLM Open in the Netherlands.
The Northern Irishman hit the best round of the day to move to within three shots of leaders Stephen Dodd of Wales and Marcel Siem of Germany.
The latter pair were forced to end their rounds early due to bad light.
World number two Lee Westwood is in the hunt and would have matched Ryder Cup team-mate McIlroy's 135 aggregate but for a late bogey in his 66.
Scotland's Gary Orr is tied for third, one shot behind India's Shiv Kapur.
Dodd hit four birdies and an eagle before being forced to call a halt to his round with five holes to play, while Siem is well placed good having completed only 11 holes of his second round.
Simon Dyson, a two-time former winner of the KLM Open, held the joint overnight lead with Siem and will resume his second round on Saturday at six under after eleven holes.
Defending champion Martin Kaymer looks certain to miss the half-way cut. Double-bogey sixes on the sixth and seventh left him six over with seven holes remaining.
But McIlroy believes he is yet to hit top form in the Netherlands.
"I don't feel I drove the ball particularly well," he said. "There were a couple of loose shots and I got some lucky breaks."