By Mark Lamport-Stokes PACIFIC PALISADES, California (Reuters) - South African veteran Retief Goosen, a twice former U.S. Open winner, seized a one-shot lead at the Northern Trust Open on Friday in tough conditions more reminiscent of a major championship. On a firm and fast-running Riviera Country Club layout where most players struggled to get the ball close with approach shots, Goosen scrambled well as he eked out a one-under-par 70 in the second round. Burly Argentine Angel Cabrera, like Goosen a double major champion, was alone at four under after carding a 68. Some of these holes, if you get away with a par, it's a good score." Goosen, a seven-times winner on the PGA Tour who clinched the U.S. Open in 2001 and 2004, has not triumphed on the circuit since the 2009 Transitions Championship. More...