Lions beguiled by Prasanna
England Lions were left in a spin by Seekkuge Prasanna who took 6-23 as Sri Lanka A levelled the one-day series with a thumping 10-wicket win that was wrapped up before lunch.
Just 48 hours after posting 310 against the same opposition, England Lions looked like they might not pass 50 after sliding to 16 for five within six overs.
That they managed to scramble up to 108 was something of a miracle - Chris Woakes' unbeaten 45 the one bright note on a disappointing day for England's second string.
On the same wicket that was used for Friday's opening game, Sri Lanka opened the bowling with leg-spinner Prasanna - a move which worked to devastating effect as he claimed the first six wickets to fall.
It all started to go wrong for the Lions in the second over when Alex Hales overbalanced and was smartly stumped by Kushal Perera, soon followed by Joe Root who was trapped in front for a duck.
The sixth over of the innings and Prasanna's third was the most destructive as he took wickets with his third, fifth and sixth deliveries.
Chris Nash fell leg before, Ben Stokes dabbled and was caught at slip while Jonathan Bairstow - imperious two days earlier - was beaten comprehensively by a leg-break which knocked out his off stump.
James Taylor, fresh from a fine century on Friday, offered some resistance but England Lions were staring into the abyss at 27 for six when the captain was lbw to Prasanna after missing a sweep.
With stunned reporters rifling through the record books to find the Lions' lowest ODI score, Woakes ensured his side were saved from that ignominy by offering a straight bat in defiance.
He put on 30 with Scott Borthwick and 32 with Steven Finn for the seventh and ninth wicket respectively as England Lions dribbled into three figures, but their total never looked likely to be enough.
And so it proved as Sri Lanka's openers coasted to victory within 18 overs.
Malinda Warnapura, who has scored two Test centuries, carved his way to 61 not out, of which 50 were scored in boundaries, while Dimuth Karunaratne was no less impressive in finishing unbeaten on 48.
The two sides will contest the third and final ODI at Wantage Road on Tuesday.
After the game, a disappointed Woakes said: "We're very disappointed to lose like that today, particularly after such a good win on Friday.
"We know we can play a lot better and it's now a must-win game for us at Northampton.
"I think we're a talented side so we'll work on what went wrong today and come back on Tuesday knowing that if we play the sort of cricket we know we're capable of we can beat Sri Lanka and win the series."