CRAIG White's England career has suffered another setback.

He has reported back at Headingley with a knee injury and had to go for a hospital scan.

White had rejoined his Yorkshire colleagues for the first time since collapsing in Scarborough last Tuesday week and was able to inform the club that medical tests had not detected any specific reason for his sudden illness.

He is now in good health again but the knee injury is further bad news for his immediate England prospects.

White, one of the 12 players on ECB central contracts, joined up with the England squad before the first Test with Zimbabwe at Lord's but after being left out of the side it was revealed he had suffered a hamstring strain during training.

It did not respond to treatment in time for White to play in Yorkshire Phoenix's match against Gloucestershire Gladiators a fortnight ago and he was still unfit for the four-day encounter with Zimbabwe - but would not have played in any case because of his collapse on the eve of the game.

There is better news, however, on Yorkshire and England batsman Michael Vaughan who was scheduled to return to action for Sheffield Collegiate at Hull today in his first game since breaking a bone in his hand during his innings of 155 in the opening Championship match of the season against Derbyshire a month ago.

Vaughan is included in a squad of 13 for Yorkshire Phoenix's National League match against Leicestershire Foxes at Headingley tomorrow (1pm start) and is expected to play if he comes through today without any problems - although the weather may have the final say.

"I am very impressed with the professional way in which Michael has fought his way back to fitness," said Yorkshire skipper David Byas. "He has been closely involved with the team throughout the time of his injury and once he was able to hold a bat again he took every opportunity of having a net."

Vaughan should now be fit for the Championship match against Durham at Riverside next week - Darren Gough has already intimated he would like to play in the game - and that will boost his chances of making it for the first Test against the West Indies at Edbaston, starting on June 15.

Sidebottom is also in Yorkshire's squad again tomorrow after his absence with a groin strain and he will serve as cover for Matthew Hoggard who has picked up a slight side strain in the current match with Leicestershire.

Anthony McGrath is included in the Yorkshire party for the first time this season following his knee operation but he has so far failed to make many runs either for the Seconds or in league cricket.

Leicestershire will have two key players back, in all-rounders Chris Lewis and Jon Dakin, who did not start the Championship game because of a hip injury and sore shins, respectively. York-born Scott Boswell, a former Pocklington School pupil, is also included in the squad.

It promises to be a tough match against two sides each with eight points, Yorkshire having won two and lost one of their three games and Leicestershire tieing two of their matches and winning the third.

Yorkshire Phoenix from: Byas, Fellows, Blakey, Lehmann, Vaughan, McGrath, Wood, Hamilton, Middlebrook, Hoggard, Hutchison, Elstub, Sidebottom.

Leicestershire Foxes from: Maddy, Wells, Ward, Smith, Habib, Stevens, Lewis, Dakin, Burns, Boswell, DeFreitas, Ormond.