Postpublished at 19:18 British Summer Time 6 April 2017
With Dustin Johnson out of the picture, Rory McIlroy has dropped to second favourite with the bookies. Can he make a flying start?
Summary
Injured world number one Dustin Johnson pulls out on first tee
American Charley Hoffman leads after seven-under 65
William McGirt second on -3, Lee Westwood -2
England trio Matt Fitzpatrick, Andy Sullivan & Justin Rose finish on -1
Jordan Spieth finishes +3 after quadruple bogey on 15
Rory McIlroy level par, Danny Willett +1
Player and Nicklaus pay tribute to Arnold Palmer
Postpublished at 19:18 British Summer Time 6 April 2017
Johnson out of the Masterspublished at 19:17 British Summer Time 6 April 2017
Iain Carter
BBC Radio 5 live at AugustaJohnson took until the very last second to make what must have been an agonising decision to pull out. He was standing on the first tee before making the toughest call of his career. It is a severe blow for the player who has dominated golf this season. He arrived here off the back of three big victories and was a justifiable favourite. All that has been lost through his freak fall at his rental home and the damage done to his back.
Image source, Getty ImagesJohnson out of the Masterspublished at 19:16 British Summer Time 6 April 2017
If anyone fancies a bet on Dustin Johnson next year, put it on him renting a bungalow at Augusta.
Johnson out of the Masterspublished at 19:15 British Summer Time 6 April 2017
A glum-looking Dustin Johnson trudging off the course without hitting a ball is not the sight anyone wants to see. Not even any of his peers.
This is only the second time the world number one has not played at Augusta - after Tiger back in 2014.
Johnson out of the Masterspublished at 19:12 British Summer Time 6 April 2017
The final group will be a two-ball. Dustin Johnson's name has been taken out of the scorecards which are carried around behind the players.
Jimmy Walker and Bubba Watson are going out on their own.
'The right decision'published at 19:10 British Summer Time 6 April 2017
Jay Townsend
BBC Radio 5 live at AugustaIf he can't win or compete and play at the highest level - there is no point in him teeing off. I think he made the right decision.
Johnson out of the Masterspublished at 19:10 British Summer Time 6 April 2017
Iain Carter
BBC Radio 5 live at AugustaDustin Johnson has just walked off the first tee.
He arrived on the tee, stood there with his playing partners and at the last second he took what must be an agonising decision and the world number one, the favourite, realised he couldn't do it. He is out of the Masters.
Postpublished at 19:10 British Summer Time 6 April 2017
Butch Harmon, Dustin Johnson's coach, on Sky Sports: "He has pain in his left side, he started to warm up, but his eight irons were going only 100 yards.
"He had to make a swing through the ball, then he felt it and went off for some more physio.
"He said 'I have to make some full swings'. The driver was the key, if he could make full swings with the driver then felt he felt he could get round. But he said the practice swings hurt more that then real thing.
"He said 'I'll have to give it a try and if it doesn't happen then I'll come off."
Postpublished at 19:09 British Summer Time 6 April 2017
There is still time for another plot twist in this gripping drama.
Dustin Johnson is stood on the first tee, swinging away at a few looseners. He's grimacing.
This does not look good. At all.
Postpublished at 19:05 British Summer Time 6 April 2017
D Johnson (tee-time: 19:03 BST)
Image source, Getty ImagesWE HAVE SIGHT OF DUSTIN JOHNSON!
The world number one shuffles through the throngs of patrons gathered around the locker room door.
He is trotting over to the first tee...
Live radio commentarypublished at 19:04 British Summer Time 6 April 2017
BBC Radio 5 liveThere is live commentary on Radio 5 live from Augusta, as Dustin Johnson tees off.
Bogeypublished at 19:03 British Summer Time 6 April 2017
Fitzpatrick (-1 after 11)
Five become four. Not quite as seismic as when Geri Halliwell left the Spice Girls, but big news nevertheless.
England's Matt Fitzpatrick was a Wannabe, now he's dropped out of the group on -2.
He bogeys the 11th after three birdies on the bounce, leaving compatriots Andy Sullivan and Justin Rose in a share of the lead with Kevin Chappell and Thomas Pieters.
Spieth to the 12th - scream!published at 19:00 British Summer Time 6 April 2017
Spieth (level after 11)
A little gander at the toughest holes so far shows the first is playing the hardest on day one.
Next toughest is the 12th and then the 11th, the pair of course form part of Amen Corner.
Belgium's Thomas Pieters was of course going along nicely until bogey on 11 was followed by double on 12. A number of players have gone fishing here already today.
And, unforgettably, this is where Jordan Spieth completely fumbled it last year. We wait.
Image source, Getty ImagesPostpublished at 18:58 British Summer Time 6 April 2017
Spieth (E after 10)
In case you have forgotten...
Spieth led by five shots as he approached the 10th at Augusta on the Sunday, only to dramatically drop six shots in three holes and allow England's Danny Willett to take advantage.
"No matter what happens at this year's Masters, whether I can grab the jacket back or I miss the cut or I finish 30th, it will be nice having this Masters go by," he said.
No concerns at the 11th for the American. He's got a par. Now for his first return to the 12th....
Postpublished at 18:55 British Summer Time 6 April 2017
Spieth (E after 10)
Talking of drama...Jordan Spieth is walking up to Amen Corner....
Can the 2015 champ exorcise those demons from last year's monumental meltdown?
Postpublished at 18:53 British Summer Time 6 April 2017
This DJ saga is more dramatic than an entire series of Peaky Blinders.
It's a see-saw. Will he? Won't he?
If he goes out there and shoots something boring like even par we'll be properly annoyed. Make it count DJ, make it count!
Image source, Getty ImagesShake it all about?published at 18:52 British Summer Time 6 April 2017
D Johnson (tee-time: 19:03 BST)
Iain Carter
BBC Radio 5 live at AugustaNot looking good for Johnson playing - struggled to turn properly hitting drivers on range .
But Johnson is going to give it a try.
Out?published at 18:51 British Summer Time 6 April 2017
D Johnson (tee-time: 19:03 BST)
The moment we feared?
Who knows?
This Twitter post cannot be displayed in your browser. Please enable Javascript or try a different browser.View original content on TwitterThe BBC is not responsible for the content of external sites.Skip twitter postThe BBC is not responsible for the content of external sites.Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
End of twitter postIn?published at 18:51 British Summer Time 6 April 2017
D Johnson (tee-time: 19:03 BST)
Golf writer Steve Elling indicating that Dustin Johnson might not be able to bend down properly...
This Twitter post cannot be displayed in your browser. Please enable Javascript or try a different browser.View original content on TwitterThe BBC is not responsible for the content of external sites.Skip twitter postThe BBC is not responsible for the content of external sites.Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
End of twitter postThis Twitter post cannot be displayed in your browser. Please enable Javascript or try a different browser.View original content on TwitterThe BBC is not responsible for the content of external sites.Skip twitter post 2The BBC is not responsible for the content of external sites.Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
End of twitter post 2Postpublished at 18:50 British Summer Time 6 April 2017
*Fifteen-minute warning*
We're counting down until Dustin Johnson tees off and looks fine/tees off, looks in pain and pulls out early doors/pulls out injured before teeing off.
Delete as appropriate sometime in the next 15 minutes...