Check out some of the best shots from another packed night of European action, as Barcelona went through, Arsenal edged Borussia Dortmund and Chelsea downed SchalkeBarcelona, Arsenal and Chelsea all secured wins as gameweek four of the Champions League group stages came to an end, but there was plenty of drama in store regardless of the usual winning suspects.
Olympique de Marseille took the lead at Napoli but Mathieu Valbuena et al were left in tears when Rafa Benitez's men fought back to beat the visitors 3-2, scuppering the French side's chances of progress in the competition.
Zenit St Petersburg and Porto kicked off the action with a 1-1 draw, though Hulk missed a penalty for the home side.
Arsenal's away win over Dortmund spices things up in Group F, where Marseille's hopes of reaching the knockouts were ended thanks to defeat at the San Paolo.
Atletico Madrid continued their outstanding European run with a 4-0 victory at home to Austria Vienna, securing their spot in the last 16, and leaving the the Austrians, Zenit St Petersburg and Porto to fight for the runner-up place.
Barca qualified from Group H with a 3-1 win over AC Milan, while Ajax ensured Celtic's last 16 hopes took a dent with a 1-0 win in Amsterdam.
Anybody can qualify from Group E still, though Chelsea's 3-0 win over Schalke leaves them on the brink of the last 16, while Steaua Bucharest conceding in stoppage-time at Basel leaves them hanging by a thread.