Johnson out of Ryder Cup
American Dustin Johnson will not feature in the Ryder Cup after revealing he is to take a break from golf to seek "professional help for personal challenges".
His sabbatical will begin immediately and means the world No 16 will miss this week's US PGA Championship, live on Sky Sports, and the FedEx Cup Series.
Johnson is currently fifth in the US points standings with the top nine after Valhalla sealing a spot on Tom Watson's team for Gleneagles.
A statement from Johnson's management company read: "I am taking a leave of absence from professional golf, effective immediately. I will use this time to seek professional help for personal challenges I have faced.
"By committing the time and resources necessary to improve my mental health, physical well-being and emotional foundation, I am confident that I will be better equipped to fulfil my potential and become a consistent champion.
"I respectfully ask my fans, well-wishers and the media for privacy as I embark upon this mission of self-improvement."
The PGA Tour released a statement which read: "We have nothing to add to Dustin's statement but wish him well and look forward to his return to the PGA Tour in the future."
The PGA of America later confirmed that Johnson would not be involved in the Ryder Cup and Watson added in a statement: "We will certainly miss Dustin Johnson at Gleneagles and we wish him the best.
"As one of the longest hitters in the game with an undefeated record of 3-0 at Medinah in 2012, he has clearly been an asset for the United States team.
"That said, the United States is a team with an abundance of talent. I am looking forward to teeing it up alongside those players in the PGA Championship at Valhalla, and finding out along with everyone else, which players qualify for the team based on points."
Johnson partnered Matt Kuchar to two victories in the fourballs at Medinah and beat Nicolas Colsaerts 3&2 in the singles, but that was one of just three wins on the final day for the home side as Europe came back from 10-6 down to win.