Gabriel Agbonlahor and Steven Taylor are doubtful for England Under 21s clash with Portugal.
Newcastle defender Taylor is struggling with a back problem, while Aston Villa ace Agbonlahor is suffering with a twisted knee.
Stuart Pearce is keen to have the pair available for the Euro 2009 qualifier and they will undergo late fitness tests ahead of the game.
Sit and wait
"We won't know about 'Gabby' and Steven Taylor until the morning of the game; we've had to sit and wait on those two," said Pearce.
"The players' well-being is of paramount concern to us. They won't be playing unless we feel they are 100 per cent fit.
"We are doing everything we can to have them available for us. If they are not fit, someone else will play."