Flawless Webb Simpson gains two-shot lead

Webb Simpson has opened up a two-shot lead going into the final round of the Greenbrier Classic in West Virginia.

The US Open winner has yet to drop a shot at the tournament after he holed five birdies on Saturday to move onto 14-under-par.

Fellow American Troy Kelly is a shot further back while another American, Ken Duke, shares 11-under with two others.

PGA Championship winner Keegan Bradley is amongst a cluster of players four shots off the lead.