Manchester United face a tricky test against Celta Vigo in the Europa League semi-final.
Jose Mourinho's side sneaked past Anderlecht in the quarter-final with an aggregate score of 3-2 thanks to Marcus Rashford's extra-time strike at Old Trafford on Thursday night.
Celta Vigo beat Belgian side Genk to reach the semis and feature former Liverpool corner-taker Iago Aspas.
Mourinho is sweating over the fitness of Marcos Rojo and Zlatan Ibrahimovic for United's European run-in, saying he was 'not optimistic' about the injuries they sustained against Anderlecht.
In the other semi-final, Ajax will play Lyon after overcoming Schalke in extra time.
Lyon reached the semi-finals following a tense penalty shootout against Besiktas in a tie that saw crowd trouble in the first leg.
The semi-final first legs will played on May 4th, with the second legs held a week later on May 11th.