Only Arsenal, Manchester United, Villarreal, and AS Roma remain in this season's Europa League.
Manchester United reached their 18th semi-final in all European competitions following a 2-0 victory (4-0 on aggregate) over visiting Granada. Edinson Cavani scored the opener for United before a late own goal from Jesus Vallejo helped United into their fifth semi-final in two years.
The victory saw United advance to the semi-finals of the Europa League and will now face AS Roma who eliminated Ajax. Roma were held to a 1-1 draw by Ajax but won 3-2 on aggregate to reach the last four.
Arsenal stun Slavia Prague
Elsewhere, Arsenal thrashed Slavia Prague 4-0, to win 5-1 on aggregate to book a spot in the semi-finals of this season's Europa League.
A double from Alexander Lacazette and goals from Bukayo Saka and Nicolas Pepe ensured the Gunners advance to the last four.
Arsenal will now face Villarreal who beat Dinamo Zagreb 2-1, 3-1 on aggregate.
Into the semi-final! 🙌— Arsenal (@Arsenal) April 15, 2021
⚪ 0-4 🔵 (FT) | (1-5 agg)