Pierre-Emerick Aubameyang fired Barcelona back into second place in La Liga after a narrow victory at Real Sociedad.
PSG looked sluggish and apathetic as the Ligue 1 leaders slumped to a 3-0 defeat at Monaco, while Tammy Abraham scored twice in the Rome derby.
Tammy Abraham's penalty more than nine minutes into stoppage time ended Roma’s winless run as Jose Mourinho's scraped a 1-0 victory at 10-man Spezia in Serie A.
Clubs from across Europe showed their support for Ukraine as the line-up for the Europa League and Europa Conference League last-16 was finalised on Thursday.
Barcelona were held 1-1 at home by Napoli in the first leg of their Europa League knockout stage playoff tie on Thursday.
A 96th minute header from substitute Luuk De Jong saw Barcelona rescue a 2-2 draw away at city rivals Espanyol in LaLiga on Sunday.
Borussia Dortmund fought back from two goals down after a lacklustre start to beat Eintracht Frankfurt 3-2 and return some excitement to the Bundesliga title race.