Injured England midfielder Gareth Barry is set to undergo rigorous tests on Tuesday to assess his fitness for the World Cup.
It had been thought the Manchester City ace was due to see his specialist on Monday regarding the ankle ligament injury he sustained in an innocuous-looking incident during City's home defeat to Tottenham on 5th May.
But the 29-year-old is now set to undergo a rigorous set of tests with the England medical staff the following day, with his club counterparts also on hand for their own input.
England boss Fabio Capello has already confirmed Barry, a regular in the side under the Italian, will be part of his final 23-man squad if he is likely to be fit for the opening Group C game against the United States.
He said: ""Barry is one of the players we want to be fit.
"If he is fit, he will come with us. If not, he will stay at home."
But Capello also has a safety net in that Fifa's rules for squad selection allow any player ruled out through injury after the final squads are confirmed to be replaced until 24 hours before the first game.
That individual would not have to come from the 30-man provisional squad that will be on duty for Monday night's friendly against Mexico at Wembley.