SIMON Jones suffered an injury setback as Glamorgan sneaked to their first C&G Trophy victory by 15 runs against Ireland at Cardiff.

The fast bowler limped off with a knee twinge at the start of his second spell and may now be a doubt for England's opening Test against Sri Lanka at Lord's in 10 days' time.

Assessing Jones' injury, Glamorgan physio Chris Towers said: ""We are liaising with the England medical team and will assess the position further after Simon has had a night's rest, he may need a precautionary scan."

Jones has been withdrawn from the line-up for the Liverpool Victoria County Championship clash with Derbyshire at Cardiff which starts on Wednesday.

Glamorgan were made to struggle for their victory over a confident Ireland side, who had been buoyed by a victory over Gloucestershire at Bristol on Sunday.

Responding to Glamorgan's 250 for nine, in which new signing Mark Cosgrove scored 75 from 57 balls on debut, Ireland were bowled out for 235 in 48.3 overs.

They were indebted to Shahid Afridi's whirlwind 54 from 41 balls, and a sixth-wicket partnership worth 74 between Peter Gillespie (54), on his 100th appearance for Ireland, and Kyle McCallan (30), but they eventually fell short.

Glamorgan, who won the toss, had looked at one stage to be on course for well over 300.

And that certainly looked the case while Cosgrove, fresh from his one-day international debut for Australia in Bangladesh, reached a half century from only 40 balls. He also struck Saqlain Mushtaq for two successive straight sixes.

The South Australia left-hander was third man out after skipper Robert Croft (30) and Alex Wharf (10) had also perished as the home side reached 125 for three.

It was left to Michael Powell and Nicky Peng to rebuild the innings and they produced a patient stand of 72 in 17 overs.

But Trent Johnston brought himself back into the attack and dismissed Powell (34) and David Hemp (0) in the space of two balls.

And Peng went leg before for 42 in his next over, leaving Johnston with three wickets in the space of seven balls for no run.

Glamorgan's innings suffered another slump when Mark Wallace was run out and Richard Grant was bowled behind his legs by Afridi, who also struck in the same over to remove Cosker leg before.

Such was the collapse that only 53 runs came in the closing 16 overs of Glamorgan's innings.

Jones looked fit and strong in his opening spell as he helped to reduce Ireland to 34 for three.

With his first ball he had Dom Joyce caught at second slip, and in his fourth over Eoin Morgan top-edged an attempted pull to Powell running back at slip.

Jones was also responsible for the comical run out of Jeremy Bray with a fine throw from fine leg.

Cosgrove displayed his all-round abilities by having Andre Botha caught behind in his first over but Ireland fought back through Afridi, Gillespie and McCallan.

There were also runs from the late order but Ireland ran out of wickets - Wharf claiming three for 67 - as Glamorgan won with nine balls to spare.