Marcus Rashford "has to change" before returning to action for Manchester United, says head coach Ruben Amorim.
It is seven weeks since Rashford, 27, last featured for his club and the England forward said in December he was "ready for a new challenge".
Rashford was once again left out of Manchester United's squad for Thursday's Europa League encounter against Romanian side FCSB in Bucharest.
"Imagine a talent like Rashford, our team should be so much better with him - but he has to change," Amorim said on Wednesday.
"If he changes, we are more than welcome [to include him] – and we need it.