Nathan Delfouneso has withdrawn from the England Under-21 squad that is preparing to take on Belgium on Monday evening.
The Aston Villa striker is suffering with a hamstring injury that he sustained during Thursday's 5-0 win over Iceland.
As a result the 20-year-old will not travel to Mons with Stuart Pearce's squad.
However, Pearce should have Jason Lowe and Adam Smith available following respective hamstring and ankle problems.