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Afghanistan chase 242 to boost semi-final hopes
Win takes them to six points - two behind NZ and Australia in third and fourth
Rahmat, Hashmatullah and Azmatullah all make half-centuries as they win with 28 balls to spare
Sri Lanka bowled out for 241 in 49.3 overs, having been 134-2
Nissanka top-scores with 46, while Mendis adds 39 & Samarawickrama 36
Farooqi takes 4-34 & Mujeeb 2-38
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Azmatullah Omarzai is late on a hook shot to Kasun Rajitha and it goes skyward towards deep mid-wicket.
Pathum Nissanka makes up plenty of ground and gets his hands to the ball with a spectacular diving effort, but the balls slips through his hands.
A tough chance. To rub salt in the wound Azmatullah pulls the next ball for four.
Lydia Greenway
Former England batter on BBC Test Match Special
Image source, Getty ImagesAfghanistan have been the better side with bat and ball. This has been a bit of a batting masterclass at the moment.
Azmatullah Omarzai dabs Kasun Rajitha on into the off side and sprints to the other end to notch a run-a-ball fifty.
Two fours and three sixes.
He raises his bat, and gets a hug from his captain while his team-mates applaud.
Lydia Greenway
Former England batter on BBC Test Match Special
That's one of the shots of the day.
It was there to be put away, but in terms of aesthetics and technique it was a lovely looking shot.
Azmatullah Omarzai takes a brisk single with a clip to mid-on so he moves on to 49.
Hashmatullah Shahidi finishes Dilshan Madushanka's over with a crunching drive through the covers.
Afghanistan are in cruise control.
Charlie Taylor
Commentator on BBC Test Match Special
Sri Lanka seem to be out of ideas here.
Dilshan Madushanka is driven through the covers for a single by Hashmatullah Shahidi.
He has a stoic half-century off 67 balls. His 18th fifty in ODIs.
The Afghanistan captain will want to be there at the end.
The occasional pressure-releasing wallop interspersed with clever farming of the strike has been the mantra of Afghanistan.
Here's one of the former from Azmatullah Omarzai from a little while ago.
Meanwhile, a slog sweep for four from Azmatullah off Maheesh Theekshana puts him on 48.
41 from 60 balls required for Afghanistan.
Hashmatullah Shahidi is one run away from a half-century.
Charlie Taylor
Commentator on BBC Test Match Special
Image source, Getty ImagesJonathan Trott is going to be a national hero in Afghanistan the way this tournament is going for them.
They are cruising at the moment.
A slower bouncer from Dilshan Madushanka and Azmatullah Omarzai top edges it, but the ball drops agonisingly short of Kusal Mendis.
Charlie Taylor
Commentator on BBC Test Match Special
Sri Lanka have lost control a bit here.
Lydia Greenway
Former England batter on BBC Test Match Special
This is an excellent shot, he just opened the blade slightly to beat extra cover. A really skilful piece of batting.
Kusal Mendis realises the game could be over before using Dilshan Madushanka closer to the death so persists with the left-arm seamer in search of a breakthrough.
However, Azmatullah Omarzai steps on the front foot and times a crisp punch through the covers for four.
A little too easy for Azmatullah Omarzai and Hashmatullah Shahidi as they knock Maheesh Theekshana into the gaps.
A bit of a resigned look to Sri Lanka in the field.
Five easy runs added to the total as we tick closer to the final powerplay.
Niall O'Brien
Ex-Ireland wicketkeeper on Test Match Special
Sri Lanka need a couple of wickets and sharpish because after that six last over Afghanistan are in complete control with both batters well set.
This is a big game for both sides and I still think there is going to be a twist in the tail.
A bit of swing and hope from Hashmatullah Shahidi to the final ball of Dilshan Madushanka's seventh over as a top edge from a pull shot sails over the boundary at fine leg for six.
It's not going to be Sri Lanka's day by the looks of it.
Niall O'Brien
Ex-Ireland wicketkeeper on Test Match Special
Azmat got very lucky there. It was very ungainly. It tells me he does not enjoy the short ball.
Charlie Taylor
Commentator on BBC Test Match Special
That was a chance. Azmat knew nothing about it.
Dilshan Madushanka with a short ball and Azmatullah Omarzai chips it up in the air.
The ball seems to hang there for an age. Azmatullah turns away fearing the worst.
But neither the bowler nor the fielder at short mid-on cannot get a hand to the ball and it plonks safely into the turf.