Yorkshire Phoenix face a tricky problem in who to leave out against Durham Dynamos at Headingley Carnegie on Sunday in order to accommodate England captain Michael Vaughan.

The comfortable victory over Derbyshire Phantoms on Thursday has renewed York-shire's hopes of qualifying for the semi-finals of the Friends Provident Trophy.

But to stand any chance of doing so they must beat Durham and then overcome Northamptonshire Steelbacks at Headingley on June 13.

Everyone in the team performed well at Derby but someone will have to make way for Vaughan, who wants to polish up his batting for the third Test against the West Indies at Old Trafford on Thursday.

It is a tough call for captain Darren Gough and director of cricket Martyn Moxon, who said that Vaughan's return was one of two issues which would be tackled shortly before the match.

"First of all we need to see what the pitch is like and we also need to keep an eye on the weather forecast," said Moxon.

"We have once again got left-arm spinner David Wainwright in the squad and whether he comes in as the main spinner or we ask Jacques Rudolph and Younus Khan to share the job will depend upon the conditions," he added.

"If David plays, then someone else is going to have to stand down in addition to who drops out for Vaughan."

It is a fair bet that Wainwright will once again be 12th man and that Andrew Gale will be omitted for Vaughan, despite the left-hander's unbeaten 40 against Durham and his consistent batting in the competition this season.

In four innings to date, Gale has made 151 runs for twice out to leave him with an average of 75.5.

Former Woodlands player Richard Pyrah is another under threat but he has taken seven wickets at only 22.85 runs apiece with his medium pacers and has become one of Yorkshire's outstanding fielders in one-day cricket.

Another poser for Gough will be where Vaughan should be slotted into the batting order.

Craig White and Rudolph put on 122 for the first wicket at Derby and Anthony McG-rath is well settled in the No 3 spot where he has scored 253 runs in four innings, one of which brought him 135 not out against Lancashire at Old Trafford.

Younus, who hit a century on his one-day debut against Nottinghamshire, generally bats at No 4 with Gale following him.

The good news for Yorkshire is that Gough appears unlikely to be seriously affected by either the tight hamstring he experienced at Derby or the heavy knock he took on his middle right finger when trying to hold on to a bullet-like drive from Graham Wagg.

"Darren felt a twinge at the top of his hamstring and, because he was concerned he may have pulled it, he went off for some manipulative treatment but he was fine afterwards and ran in well later in his spell when he took three wickets," said Moxon.

"It was a hard blow which he took on his finger and it is still a bit stiff but he doesn't seem too concerned about it."

England have agreed to let Paul Collingwood play for Durham against Yorkshire but not Liam Plunkett or Stephen Harmison, who are both playing for Dynamos in today's Friends Provident match against Worcestershire Royals at Riverside.

Yorkshire Phoenix from: White, Vaughan, Rudolph, Younus Khan, Gale, Pyrah, Bresnan, Guy, Gough, Gillespie, Kruis, Wainwright.