Mourinho is clear that Marcus Rashford may not be made available for England 's challenge at the European Under - 21 Championship next summer if he is a regular in the senior squad .
Marcus Rashford may start as his main striker on Thursday .
Mourinho is clear that Marcus Rashford , who may start as his main striker on Thursday , may not be made available for England 's challenge at the European Under - 21 Championship next summer if he is a regular in the senior squad .