Some big names bowed out of continental competition in the round of 32, but there are plenty still in the running for major silverware.
Barcelona will face Galatasaray in the last-16 of the Europa League, while West Ham has been paired with six-time winners Sevilla.
Elsewhere, Scottish champions Rangers take on Red Star Belgrade and RB Leipzig must overcome Spartak Moscow in order to reach the quarter-finals.
There are two meetings between French and Portuguese sides, as Braga faces Monaco and Porto tackle Lyon, while Atalanta come up against Bayer Leverkusen and Real Betis square off against Eintracht Frankfurt.
Europa League last-16 draw in full
Rangers vs Red Star Belgrade
Braga vs Monaco
Porto vs Lyon
Atalanta vs Bayer Leverkusen
Sevilla vs West Ham
Barcelona vs Galatasaray
RB Leipzig vs Spartak Moscow
Real Betis vs Eintracht Frankfurt