Dustin Johnson's manager says the world's No. 1 player has taken a serious fall on a staircase on the eve of the Masters.
David Winkle of Hambric Sports says in an email that Johnson fell on the stairs of his rental home in Augusta on Wednesday.
Johnson landed hard on his lower back and is now resting with discomfort ahead of the tournament start on Thursday.
Doctors have advised Johnson to remain stable and start taking anti-inflammatory medication.
Winkle says Johnson hopes to be able to play in the Masters when it starts on Thursday.
"At roughly 3:00 pm today, Dustin took a serious fall on a staircase in his Augusta rental home," the statement read.
"He landed very hard on his lower back and is now resting, although quite uncomfortably.
He has been advised to remain immobile and begin a regimen of anti-inflammatory medication and icing, with the hope of being able to play tomorrow."
Johnson, the reigning US Open champion, is the favourite to win the green jacket and record is best Masters finish last year with T-4.