February 18, 2017; Pacific Palisades, CA, USA; Dustin Johnson hits from the sixth hole tee box during the continuation of second round play in the Genesis Open golf tournament at Riviera Country Club. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports
(Reuters) - Long-hitting Dustin Johnson closed in on the world number one ranking when he took the second-round lead at the weather-plagued Genesis Open on Saturday.
Johnson overcame some errant iron shots mid-round, storming home with three birdies in the final four holes for a five-under-par 66 on the damp and unusually lush Riviera course.
