Dustin Johnson in jeopardy for Masters Tournament

Dustin Johnson plays a shot from a bunker at Augusta National Golf Club. (Photo by Andrew Redington/Getty Images)

AUGUSTA, Ga. - Dustin Johnson, the top ranked golfer in the world and the betting favorite to win the 2017 Masters, might not even play in the tournament.

According to his manager David Winkle, Johnson took a serious fall on a staircase in his Augusta rental home Wednesday afternoon. Johnson, who landed "very hard" on his lower back, has been advised to remain immobile and "hopes" to be able to play Thursday in round one.

Johnson tees-off at 2:03pm Thursday in the final group of round 1.