Manchester United will have to push hard to win the Europa League semi-final against Athletic Bilbao despite their 3-0 win in the first leg, manager Ruben Amorim said on Wednesday.
United have put themselves in the driving seat for a place in the final in Bilbao thanks to three first-half goals in the Spanish city on Thursday.
The Old Trafford club is struggling domestically, however, languishing in 15th place in
