Published: Jul 29, 2011 8:28 PM EDT
Updated: Jul 30, 2011 6:30 AM EDT

KILLARNEY, Ireland (AP) - Northern Ireland's Darren Clarke crashed out of the Irish Open, while fellow countrymen Rory McIlroy and Graeme McDowell both made the cut on Friday.

Germany's Marcel Siem took the second-round lead at 10-under 132 after a stunning eagle on the 16th hole. India's Jeev Milkha Singh, who only managed a 70 after Thursday's 63, and Denmark's Soeren Hansen (66) were tied for second, one shot back.

U.S. Open champion McIlroy and 2010 U.S. Open winner McDowell both looked in danger of following Clarke out of the tournament. However, McIlroy bagged three straight birdies from Nos. 14 to 16 as he carded a 68, while McDowell birdied his first two holes in a 66. Both were at 4-under 138.

Clarke slumped to 1-over just two weeks after winning the British Open.