Yorkshire are having to wait until England pick their one-day squad on Friday before knowing how much cricket Michael Vaughan will be able to play for the Tykes over the next few weeks.

Vaughan has announced that although he has stood down as England's one-day captain, it is not his intention to retire from the one-day international scene.

But his record of not having scored a century in 86 one-day internationals for England suggests he will be overlooked for England's two Twenty20 matches, against the West Indies at The Oval next Thursday and Friday, and also that he will not required for the NatWest Series against the West Indies, which starts on July 1.

That would mean Vaughan would be up for selection for much of Yorkshire's Twenty20 Cup campaign, although it is understood he will not be available for the first game against Leicestershire at Grace Road on Friday.

It is not certain at this stage, however, that Vaughan would wish to risk damaging his knee in this competition - or that Yorkshire would feel his presence would strengthen the side.

More important, perhaps, is that if Vaughan is not wanted by England for one-day internationals then he would be free to play for Yorkshire when they resume their County Championship programme against Lancashire in the Roses match at Old Trafford on July 8.

Yorkshire director of cricket Martyn Moxon is also waiting to see if England pick Matthew Hoggard for their one-day programme because, if not, he would become immediately available for his county.

Moxon has now established that Younus Khan is definitely in Pakistan's squad for their two one-day internationals in Scotland on July 1 and 3 but he is still not sure exactly when the player will join up with his country and then return to Headingley.

Meanwhile, Yorkshire are tomorrow holding an internal Twenty20 practice match at Headingley and they will play another on Thursday before announcing their squad for Grace Road.