Aussie friends and South Australia team-mates Darren Lehmann and Greg Blewett found themselves rivals today in Yorkshire's Benson and Hedges Cup clash with Nottingham-shire at Headingley.

Lehmann, in blistering form, recommended Blewett to Yorkshire when he was unavailable because of the World Cup in 1999.

But, surprisingly, Blewett's season with Yorkshire turned out to be a disaster and both parties were relieved when he left early.

Blewett joined Notts at the start of this season and on his debut against Durham in the Championship last week his innings of 133 earned him rave notices and in Monday's B&H match against Leicestershire his unbeaten 59 helped Notts win by eight wickets.

The two sides went into today's match knowing that victory would preserve their 100 per cent winning record in the competition this year and enhance their chances of advancing to the quarter final.

Notts also included another former Yorkshire player in Pudsey-born Gareth Clough.

The 22-year-old made a shock debut for Yorkshire against Glamorgan at Cardiff in 1998 when he travelled to Sophia Gardens as 12th man but then played because Yorkshire wanted to pack their side with every available seamer.

In the event, it was Clough's brave innings of 33 which did much to bring about a Yorkshire win but he never got another chance at first team level and last year he played for Notts Seconds, topping the bowling with 37 wickets and scoring 400 runs.

Yorkshire have made the perfect start to the season with the B&H crushing of Derbyshire.

But skipper David Byas warned that Yorkshire must be on top of their form to beat Notts.

"They did very well to beat Leicestershire in the first round and they can be a very dangerous side indeed," he said.

Yorkshire are still awaiting the results of a back scan on England fast bowler Matthew Hoggard.

Yorkshire: Vaughan, Hamilton, McGrath, Lehmann, Byas, Fellows, Lumb, Blakey, Silverwood, Sidebottom, Baker.

Notts (from): Bicknell, Welton, Blewett, Afzaal, Johnson, Pietersen, Read, Franks, Logan, Clough, Smith, Malik, Hewison.