Yorkshire's director of cricket, Martyn Moxon, is seething that leg-spinner Adil Rashid will miss three vital Championship matches because he has to play for England Under-19s in their two Tests and five one-day internationals against Pakistan A.

Moxon has contacted the ECB to try to obtain Rashid's release but his pleas have been rejected.

Rashid will be with England A for three weeks from early August, which means he will miss Yorkshire's Championship games against Lancashire at Headingley Carnegie, Worcestershire at New Road and Warwickshire at Scarborough, where he took six for 67 against the same opponents on his first-class debut last year.

Rashid, who was 19 in February, has so far accumulated three points through playing in two under-19 Tests and a one-day series but he needed to have reached six points for Yorkshire to have been able to decline to release him.

If he plays in both of the forthcoming Tests and also the one-day series that would take him to six points but after that he will be too old for under-19 cricket.

Moxon said: "I made my case in a phone call to the ECB but they refused to release him. I asked if it were not better for Adil to be bowling against the likes of Stuart Law, Brad Hodge and Mal Loye and batting against Mutiah Muralitharan, rather than playing under-19 cricket, but they said there was plenty of time for that.

"Obviously, this is a policy decision, but where do the counties stand in the development of young players?

"We get criticism for signing Kolpak players but how do we put a good side together when England Lions and Under-19s cricketers are taken out of the Championship?

"Who is left to play? We have created competitive leagues in the Championship but it is very difficult to be competitive with the best players taken out of it. If experienced youngsters are thought to be better off playing for England Under-19s than in the Championship you might as well scrap Championship cricket."