England's injured striker Wayne Rooney kicked a ball at the side's training ground in Carrington on Friday sparking a betting spree on his fitness for the World Cup.

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Reporters spotted the Manchester United forward, who broke his toe against Chelsea at the end of April, running and kicking the ball on a different part of the ground from the rest of his England team-mates.

United have lent England the ground for pre-World Cup practice.

Rooney is scheduled to have a scan on his foot on June 7, three days before England open its World Cup campaign against Paraguay, to see whether he has a chance of playing any part in the tournament in Germany.

"News that Wayne Rooney is running and kicking a ball in training has sparked a punting plunge on him to play a part in the World Cup," bookmaker William Hill said in a press release on Friday.

Meanwhile, right back Gary Neville missed training for a second day and is a doubt for England's final World Cup warm-up match against Jamaica on Saturday.

The Manchester United defender suffered a hamstring injury during the 3-1 friendly win over Hungary Tuesday evening.

Neville came off at half-time during the match at Old Trafford and was replaced at right back by Jamie Carragher.

England coach Sven-Goran Eriksson said at the time Neville had come off as a precautionary measure.

Eriksson has no straight replacement in his squad at right back, meaning that Carragher or Owen Hargreaves would have to fill in.