Root, promoted to open in absence of injured Roy, becomes first England batsman to score three WC hundreds
Morgan (back) & Roy (hamstring) both injured and don't bat in England's run chase
Windies bowled out for 212 in 44.4 overs - Pooran 63, Wood 3-18, Archer 3-30
Russell and Gayle were both dropped - England have now dropped as many catches as Pakistan in this WC (8)
Michael Vaughan
Ex-England captain on BBC Test Match Special
England have been a different class, West Indies just haven't arrived today. They've put no pressure on at all, if they had got 280 then you never know. They just didn't do the hard yards.
Study their body language. They haven't looked up for the fight. No energy.
This is short and wide from Shannon Gabriel, and Ben Stokes leaves it well alone.
Need 13 runs to win
Whoops. Another leg side wide to the total.
There's been 17 extras in this innings - 15 of those are wides.
Phil Tufnell
Ex-England spinner on BBC Test Match Special
Eoin Morgan will be crucial, if he's out for a game or two. He's such a good leader in this England team. England are prepared to take on a challenge.
Oh, now Shannon Gabriel is grimacing as he pulls out of his follow-through...
Ben Stokes is out at four for England.
Phil Tufnell
Ex-England spinner on BBC Test Match Special
A nice little knock from Chris Woakes because Jason Roy is unfit, played nicely, job done. England are over the line and he'll be happy with that.
Woakes c sub (Allen) b Gabriel 40 (Eng 199-2)
Chris Woakes won't see it home!
He swings after a short ball and Fabian Allen, running in from the boundary, takes a good catch diving forward to dismiss the number three. A consolation wicket, if nothing else.
Fazeer Mohammed
West Indian commentator on TMS
England's psychology is so different from previous World Cups. They are so confident.
Joe Root pulls once again - he's connected cleanly, but it's fielded by the man at deep mid-wicket and Root will have to settle for a single.
Eoin Morgan, who is in his kit, has appeared on the balcony.
A crunching back foot drive from Joe Root adds yet another couple to the total.
He's three away...
Image source, AFPA roll of the wrists from Joe Root brings up the 100 partnership thanks to a couple through the covers, and it takes the makeshift opener to 95.
Short, down the leg side from Shaoon Gabriel, and it's signalled wide as Joe Root berates himself for chasing it.
Andy Zaltzman
Test Match Special statistician
Niche start alert. Chris Woakes is the first England player to open the bowling and bat in the top three in an ODI since Dominic Cork in 1997.
Image source, Getty ImagesRoot 93, Woakes 40
As a side note, if Joe Root reaches a century here, he'll be the first England player to make three World Cup tons. Which sort of shows how bad England have been at global tournaments.
Root might not actually get to three figures, as West Indies gift a couple of helpful wides to the total, one a short ball that flies way over Chris Woakes' head.
Fazeer Mohammed
West Indian commentator on TMS
The West Indies have let themselves down in many areas. You can talk about the toss but you have to be prepared for days when you have to defend a low total.
They look comfortable losing, like it's all fun and games now. That's what hurts people like Sir Curtly Ambrose, who you know would go down fighting.
Drinks over and done with, and Oshane Thomas is coming back on.
For a match that promised a lot, this has been a little... flat.
Phil Tufnell
Ex-England spinner on BBC Test Match Special
This could have been tricky with the depth of the West Indies line up but England dispatched them nicely. This will be a morale-boosting win.
#bbccricket
Barney: Jofra Archer to come in if we lose another wicket and finish it off with a 6?
With England needing 23 runs to win, the players are taking a hydration break.
Because cricket.
Shannon Gabriel tests out Chris Woakes with a couple of short balls, and he ends his latest over with four dots.
England need just 23 runs for victory.