Take a look at the quarter-finalists' head-to-head records against their opponents.
Ajax
Top scorer: Dusan Tadic (9, including three in qualifying)
Head-to-heads in UEFA competition
vs Juventus W2 D4 L6 F9 A15
Liverpool
Top scorer: Sadio Mane, Mohamed Salah (3)
Head-to-heads in UEFA competition
vs Porto W3 D3 L0 F12 A2
Tottenham Hotspur
Top scorer: Harry Kane (5)
Head-to-heads in UEFA competition
vs Man City (ENG) N/A
Manchester United
Top scorer: Romelu Lukaku, Paul Pogba, Marcus Rashford (2)
vs Barcelona (ESP) W3 D4 L4 F15 A20