MacIntyre mostly went blow for blow against the world’s best player in the third round, shooting 68 to Scheffler’s 67, and by making a 41-foot birdie putt on the 18th hole, he gave himself a four-shot cushion heading into the penultimate Sunday of the PGA Tour’s FedEx Cup Playoffs.

World number one Scottie Scheffler eats up Robert MacIntyre's overnight lead of four shots to win the BMW Championship.

Scottie Scheffler chipped in for birdie from 82 feet on the 17th hole on Sunday to win the US PGA Tour's BMW Championship by two strokes over Scotland's Robert MacIntyre.He pitched out, the ball hitting the green and rolling 82 feet for birdie,

Robert MacIntyre had a heated interaction with fans during the third round of the BMW Championship, but it served to raise his competitive edge.

Follow live updates from the final round of the BMW Championship as Bob MacIntyre attempts to hold off Scottie Scheffler at Caves Valley, Maryland.

Robert MacIntyre was up to the test of facing the No. 1 player in the world Saturday, holing a collection of big par putts and then delivering a 40-foot birdie on the final hole for a 2-under 68 and a four-shot lead over Scottie Scheffler in the BMW Championship.

MacIntyre had started out with a four-shot overnight lead at Caves Valley Golf Club in Owings Mills in Maryland but had the wind taken out of his sails by a struggling start in the closing circuit of the $20 million event.

First Bob MacIntyre faced down the US hecklers who were no doubt warming up their dimwitted jousts for next month’s Ryder Cup. And then the Scot holed a 40-footer on the last to signal to Scottie Scheffler that he will not simply be swept aside for a £2.