It took Michael Vaughan, the world's top batsman in 2002, only seven balls to come down to earth with a bump on his seasonal debut for Yorkshire at the Rose Bowl yesterday.

Vaughan played back to that old war-horse Wasim Akram - Hampshire's overseas replacement for the banned Shane Warne - and had his middle and off stumps wrecked after making only a single.

It was a class delivery from the former Pakistani captain and too good for Vaughan who knows he must shed some ring rustiness before the Test series against Zimbabwe begins later this month.

Vaughan's dismissal was the second big disappointment for Yorkshire, the first being that damp had crept under the covers and on to the pitch, holding up play on a bright and breezy day until 2.30pm when 45 overs had been lost.

Not surprisingly in these difficult batting conditions, John Crawley decided to put Yorkshire in when he won the toss, so exposing them to the formidable left-arm alliance of Wasim and Alan Mullally.

Driving was a risky business with the ball moving around and soon after Vaughan had gone Matthew Wood edged an attacking stroke to wicketkeeper Nick Pothas who took the catch in front of first slip.

Michael Lumb joined captain Anthony McGrath at 15-2 and the left-hander announced himself with a fine straight drive for four off Dimitri Mascarenhas but just when the pair were finding their feet, McGrath lunged at a ball from Hampshire's fourth seamer, Chris Tremlett, and was caught at cover.

Richard Blakey's policy this season is to try to score off every ball and he employed it so successfully that by tea he had reached 24 and overtaken Lumb who had given him 11 overs start.

But Blakey went soon after the interval when a refreshed Mullally had him caught behind and in his next over he accounted for Gary Fellows who pushed to second slip before he had scored.

Supported by Richard Dawson, Lumb batted sensibly against formidable bowling and although well beaten once or twice he never threw in the towel. At 128, however, he lost Dawson and Chris Silverwood to consecutive balls in the first over of a spell from spinner Shaun Udal, Dawson being lbw on the back foot and Silverwood caught by the sprawling Robin Smith at short leg.

Darren Gough blocked the hat-trick ball and hoisted the next to the boundary but there was a shade more class from Lumb as he leaned back and cut Tremlett for his seventh four to complete a chanceless half century off 143 balls.

Eager to flex his muscles, Gough drove Udal for six and Yorkshire recovered to close on 174 for seven, the unbroken stand of 46 being the highest of the day.