England will give Yorkshire all-rounder Craig White a full scale work-out to establish his fitness for the crucial one-day match against Zimbabwe at Centurion Park.

White missed Friday's two-wicket defeat by South Africa in East London with a hamstring strain but was fit enough to train on Monday.

He joined the squad in a kick-about in the wet outfield as steady rain prevented any net practice.

Mark Alleyne may be rested if White returns for the crucial decider on Wednesday.

England must win to reach the final of the triangular tournament, unless the game is washed out -- which would mean England qualifying to meet South Africa by virtue of a better run-rate.

Zimbabwe's main threat lies in classy former Leicestershire left-hander Neil Johnson and skipper Andy Flowers.

England know if they can dispose of those two batsmen, Zimbabwe's chances of accumulating a challenging score are limited.

Nasser Hussain has shown throughout the tour his willingness to go on the offensive, and he will once again pick an attacking line-up.

Fast bowler Alan Mullally's pace will be welcome on a pitch with some life and where there is likely to be moisture in the air.

But Hussain has an interesting dilemma if White does make himself available.

Alleyne was Friday's man-of-the-match but White has also taken crucial wickets and played well since joining the one-day tour in place of Andrew Flintoff.

One solution may be to leave out wicketkeeper Chris Read and hand the gloves to Alleyne, as was done in a warm-up match, in order to maximise the attacking possibilities.

Meanwhile England coach Duncan Fletcher says the tour is giving valuable experience to his younger players, such as recalled batsman Darren Maddy.

"It's all about experience and learning to cope with pressure quickly," said Fletcher.

Young blood

"Look at South Africa, Jacques Kallis and Herschelle Gibbs have been around for four years, and they are only good young players now.

"This is what we are trying to do with the Darren Maddys and Vikram Solankis, the Chris Adamses. It's about playing at this level of cricket.

"We have had a look at some players, and we have to look at others. There are still guys like Gavin Hamilton who we've got to have a look at.

"But you are always under pressure, you can't keep chopping and changing the side, you have got to give them a run.

"Solanki is a good player, but it's all about taking it across into the big arena, taking it on. It's huge.

"How long did it take Australia's Ricky Ponting to get where he is now. He was the boy wonder from Tasmania, wasn't he?"