England 210-3 (30.5 overs) win by seven wickets
Bairstow 100* from 97 balls; Root 54 (53)
Windies 204-9 (42 overs): Holder 41*, Gayle 37
Stokes 3-43, Rashid 2-31, Woakes 2-41
England lead five-match series 1-0
Windies now cannot automatically qualify for 2019 World Cup
Match delayed by two hours by wet outfield
Morgan c Hope b Williams 10 (Eng 175-3)
The skipper falls cheaply again and won't see his side over the line. A decent delivery from Williams, the ball nipping back slightly from outside off and finding the edge of Morgan's bat. Straight into the gloves of Hope.
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Theo Bowyer: Is this Bairstow's audition for an Ashes opening spot? Whenever he plays he rarely lets the side down.
Jeremy Leese: Root at three and Bairstow at four in Tests would solve at least one problem in the Ashes batting line-up.
Bairstow 88, Morgan 10
Ashley Nurse with some flight and Bairstow gets down low to paddle-sweep down to third man for two. Oooh, a couple of play and misses from the opener. The first, he has a waft at a wide one. The second one finds bounce and turn as Bairstow plays inside the line.
Pressure of reaching his first ODI ton?
Michael Vaughan
Ex-England captain on BBC Test Match Special
Jason Holder has made some strange decisions in the field. Who's at backward point for the left-hander? Chris Gayle. You've got to put your best fielders in the most important positions.
Bairstow 86, Morgan 9
England may have batted professionally and picked the balls to hit, but West Indies have also offered far too much width outside that off stump. Jonny Bairstow punches off the back foot through the covers for three to pass his previous ODI high score of 83.
Slight hesitation between the England pair as Bairstow dabs and runs, but they get through comfortably. Seven from the over.
Andy Zaltzman
BBC Test Match Special statistician
The Bairstow-Root partnership of 125 is England's joint highest for the second wicket on this ground and their third highest against West Indies.
England need 40 runs from 102 balls
Do you agree or disagree with Michael Vaughan? Pick your Ashes XI using our selector tool and you can decide which position Joe Root should bat at.
Eoin Morgan admitted after Saturday's T20 that he is looking to find some form. Well, he plays a glorious cover drive to send the ball racing down to the boundary. I'm sure that will do his confidence with the bat the world of good. A super shot.
Michael Vaughan
Ex-England captain on BBC Test Match Special
Given that Root bats at three in ODIs, why is he not keen to do so in Test cricket?
It's a good point. For one, he's not the captain, which gives him more leeway to bat at four in Test cricket. But you'd still have to find a number four. His record at four is outstanding, he's the captain and if he wants to bat at four I wouldn't be moving him from four.
Bairstow 82, Morgan 1
Captain Morgan is the new man in and is off the mark straight away with a single off the legs. Bairstow is rapid between the sticks and has no better dancing partner than his skipper, as England run through two to end the over.
46 from 108 needed.
Michael Vaughan
Ex-England captain on BBC Test Match Special
It just nipped back and got tight on him, he was trying to run it down to third man and it just got the inside edge onto the stumps.
Root b Williams 54 (Eng 156-2)
It's disappointment for Joe Root who plays on. Back of a length delivery from Kesrick Williams, returning for his third over, but Root plays off the inside edge of the bat and the ball clatters into the stumps.
Michael Vaughan
Ex-England captain on BBC Test Match Special
England are running them ragged now. There's no excuse for allowing two to cover point on the boundary, that's just lazy fielding.
Eng 150-1
Dan, this is looking like a perfect opportunity for him to reach three figures.
But for now let's applaud the England Test captain Joe Root for reaching his 33rd ODI half-century. He reaches it with a controlled pull shot down to deep mid-wicket. He has 52 from 51 balls. It also brings up England's 150.
Jerome Taylor, sporting a scruffy look with half of his collar up and the other not, looks deflated.
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Dan O'Brien: Feels like Bairstow is trying to make up for missing out on his ton during the Old Trafford Test against South Africa.
England need 59 runs to win
It seems like West Indies have given up. A big over for England.
A misfield through the legs of the fielder at backward points gifts England two runs, before Root drills one off the back foot for four. Bairstow then ends the over with consecutive boundaries, the first steered through the covers and the second smashed down the ground.
Ebony Rainford-Brent
Ex-England batter on BBC Test Match Special
Bairstow enjoyed the extra pace on the ball there, saw it early and got the width he was looking for.
Here's how Bairstow brought up his fifty a few minutes ago:
Bairstow 71, Root 39
We do see some pace as Jerome Taylor returns. I say that, the seamer bowls a slower ball (71mph), giving way too much width and a man in Bairstow's form has no problem in dispatching that to the deep point boundary for four.
74 more needed from 126 balls.
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Rae: If Hales is going to make the trip to Australia he is going to have to engage his brain and bat within himself.
Bairstow 67, Root 38
No pace, as Bishoo continues and it's back-to-back boundaries for Bairstow. Two very different fours, but both pure class.
The first, a poor, short ball from Bishoo and the England opener rocks back and thumps past mid-on. The second, soft and delicate hands and he guides it down to third man.
Runs from every ball of the over as England manage to find the gaps and run well between the wicket. This is a solid batting performance.
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Francis Edwards: I wonder how Hales would play if the white ball actually still nipped around. He was poor at it, just like in Tests.