RBC Heritage: Dustin Johnson ahead of Shane Lowry and Ian Poulter

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Johnson makes a dramatic escape in round three at Hilton HeadRBC Heritage third-round leaderboard-10 D Johnson (US); 9 Poulter (Eng), R Sabbatini (Svk), S Lowry (Ire); -8 P Cantlay (US), S Piercy (US), CT Pan (Tai), KJ Choi (Kor), T Mullinax (US), E Grillo (Arg) Other selected: -7 M Kuchar (US); -5 S Power (Ire), E Pepperell (Eng); -4 T Fleetwood (Eng), L Donald (Eng); -3 M Fitzpatrick (Eng); -1 G McDowell (NI)

World number one Dustin Johnson takes a one-off lead in the final day at RBC Heritage in South Carolina.

After Friday's storm delays, the Irishman Shane Lowry completed the last two holes of round two on Saturday morning to lead with one.

He was three cards ahead in the third round, but had three late bogeys while Johnson played great for three consecutive birdies and finished 10 under.

Double bogeyed his first hole, but shared second place with Lowry.

World number 50 Lowry, leader after the first two rounds, had made only one bogey in his first 48 holes, but two followed in so many holes.

In wind gusts in Hilton Head, his eight-iron in the par-three 14th found the water and a putt of more than 20 feet was needed to drop only one stroke.

The 32-year-old finally came close to a birdie when his chip hit the pin behind the green but spun out of the cup and he returned a round of 71.

Johnson, who finished second on last week's Masters, dropped in 16th and 17th place, although his three-foot par-putt finally wound a 68.

Poulter sent his tee shot out of bounds at the opening hole but demolished for one of the six birdies in a four under 67, and the 43-year-old remains in the fight for a fourth PGA title.

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