Paulo Fonseca knows his Roma side will have to keep Marcus Rashford and Bruno Fernandes quiet if they are to have any hope of reaching the Europa League final.
Roma have struggled for consistency in Serie A this season under Fonseca but they are shining in the Europa League and are looking to shock Manchester United in their semi-final tie - with the first leg on Thursday night at Old Trafford.
United have been in rather formidable form recently, and ahead of the tie - which he has labelled the 'biggest challenge of his career - Fonseca has singled out Rashford and Fernandes for praise.