Arsenal shrugged off their poor recent form to secure an impressive 2-0 win over AC Milan at the San Siro in the first leg of their Europa League last-16 tie on Thursday.
Atletico Madrid were also big winners as they cruised to a 3-0 victory over Lokomotiv Moscow at the Wanda Metropolitano.
However, Borussia Dortmund have work to do if they are to reach the quarter-finals after being beaten 2-1 at home by Red Bull Salzburg.
Here's a look at all Thursday's results and a recap of the best of the action.