England 373-3: Buttler hits England's second-fastest century in ODI cricket - off 50 balls
Morgan adds 71 off 48 balls, Roy makes 87 on return from injury
Fakhar hammers 138 off 106 to give Pakistan chance of victory
Willey impresses with ball - taking 2-57
Fakhar Zaman skips down the pitch and swipes it through mid-on for another four.
Chris Woakes rolled his fingers across it but Zaman was ready for the slower ball.
England's opening bowlers aren't troubling this Pakistan pair much so far.
Phil Tufnell
Ex-England spinner on TMS
If you're going to bowl a bumper, it has to be head high. Anything short on this pitch is easily dispatched.
Charles Dagnall
TMS commentator
That was technically perfect from Fakhar Zaman.
Short from Chris Woakes and Fakhar Zaman is ready for it, pulling expertly in front of square for four more.
Lovely stuff. Fakhar Zaman stands tall and punches down the ground for four. Classy timing.
#bbccricket
David Wyatt: Watching Jos Buttler bat in one-day cricket when he's got his eye in is one of the best sights in world sport, hands down. It's like watching Messi glide past players, Federer play a passing shot and Tiger chipping in.
Image source, RexGood response from Woakes, only a further single from the over.
Target 374
First four of the innings as Imam-ul-Haq skips down and smashes Chris Woakes over Eoin Morgan's jump at mid-off. Cracking strike.
Stephan Shemilt
BBC Sport at The Ageas Bowl
If England are struggling to whittle down their battery of fast bowlers into the squad of 15, should David Willey's headband count against him?
Charles Dagnall
TMS commentator
That's where Willey is dangerous in these opening overs. If there is a little bit of movement, he will find it.
Imam 3, Fakhar 1
Willey tries to straighten up but over-corrects and slings a wide down the leg side. The next curves wide of off.
He then finds the right line, drawing Imam-ul-Haq into the stroke and beating the outside edge.
Oooh. Swing for David Willey - more movement than Pakistan's seamers managed.
It's too wide though as Imam-ul-Haq leaves it alone.
Pressure on David Willey to perform today with Jofra Archer rested.
Here is the left-armer....
Phil Tufnell
Ex-England spinner on TMS
Buttler's innings was like when you used to play in your back garden with a tennis ball and send it in to next door's fence. He was just smashing it everywhere.
Two more singles and then Fakhar Zaman's eyes light up as he tries to mash it over long-on. Swing and a miss. A wry smile from Chris Woakes.
Ooft. That's a peach. No big shot from Fakhar this time as he prods uncertainly at one from Woakes that is angled across.
Target 374
Chris Woakes is onto the pads of the left-handed Imam-ul-Haq, who clips through mid-wicket for one to get off the mark.
Right then. Jos Buttler has some wicketkeeping to do.
And this is an important innings for England's bowlers as they fight for World Cup spots and try to reach the tournament in form.
Chris Woakes to open, Imam-ul-Haq to face, 374 needed. Here we go...
Image source, Rex FeaturesEngland are coming back out after a shortened interval due to that rain delay.
You have just enough time to watch these highlights of Jos Buttler's stunning century though...
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