Yorkshire director of professional cricket Martyn Moxon has bemoaned the shot execution of his batsmen as the county’s hopes of qualifying for the Friends Provident Twenty20 quarter-finals hang by a thread.

The Tykes have to win their remaining two North Division fixtures against Nottinghamshire and Derbyshire this weekend to have any chance of advancing.

Yorkshire threw away a winning position against Warwickshire at Edgbaston on Wednesday and Moxon said: “Our chances of making the quarter-finals are slim. It’s very frustrating.

“As we know in Twenty20, it can change quickly in a matter of overs. We didn’t bat well enough once more.

“It was all about shot selection. They practice those shots, and I’m not against the guys playing them, it’s just about executing them better.

“When we get it right, we look a very good side, but we have let slip a number of winning positions throughout the group stages.

“Certainly against Warwickshire at home, our batting let us down. At Lancashire we should have got more runs than we did and away to Durham was another example of that.

“That Northamptonshire thing (Rich Pyrah’s no ball) was just a freak incident that you can’t account for.”

Beating a Nottinghamshire side who have only lost three out of their 14 matches so far will be the first half of Yorkshire’s task at Trent Bridge on Saturday night.

They then have to beat a Derbyshire side who currently occupy fourth spot in the North Division on Sunday.

All that will prove to be academic, however, should Derby beat Northants at the County Ground tomorrow night.

Moxon said: “We definitely have to win them both. Whether that is ultimately enough, we will have to wait and see.”