Barcelona were made to work for their win against third-place Getafe in La Liga on Saturday while PSG were held 4-4 by Amiens in France.
Robert Lewandowski scored another double to send Bayern Munich through to the DFB-Pokal quarter-finals as Lazio missed the chance to go second in Serie A.
Eighteen-year-old Daniel Maldini, the son of AC Milan great Paolo, made his debut for the Rossoneri right at the end of a 1-1 draw with Hellas Verona.
Bayern Munich hammered Borussia Dortmund 4-0 at the Allianz Arena, while Real Madrid also hit four against Eibar to keep up with the pace at the top of La Liga.
Romelu Lukaku's goal was not enough for Inter Milan as they missed out on the chance to steal top spot in Serie A from Juventus.
Paris Saint-Germain's game at Metz was briefly stopped after a banner perceived to be homophobic was unfurled in the stands.
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