Robert MacIntyre is not backing down from anyone this week. Not even the World No. 1 or some rowdy American fans.

MacIntyre rolled in a long birdie putt on his final hole Saturday to extend his lead to four over the world No. 1, entering the final round at Caves Valley.

Robert MacIntyre watched his par putt at the 14th hole drop, then snapped his head back to the crowd, pumping his fist and holding his finge