Celtic will play Bayern Munich in the play-off round in this season's Champions League.
Manchester City have been drawn to play holders Real Madrid, with both ties set to take place across two legs.
Full draw:
Celtic vs Bayern Munich
Manchester City vs Real Madrid
Brest vs Paris St Germain
Monaco vs Benfica
Juventus vs PSV Eindhoven
Feyenoord vs AC Milan
Club Brugge vs Atalanta
Sporting vs Borussia Dortmund
Ties to take place across two legs on February 11/12 and February 18/19
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Robbie Keane's Ferencvaros have been drawn against Czech side Viktoria Plzen in the playoff round of the Europa League.
AZ Alkmaar and Troy Parrott will face Galatasaray, with either Spurs or Manchester United awaiting in the last-16.
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Ireland wing-back Festy Ebosele has completed a move from Udinese to Istanbul Basaksehir.
The 22-year-old spent the first half of this season on loan at Watford, but was recalled by the Italian side ahead of the move to Turkey.
He's signed a three-and-a-half-year with the Turkish Superliga side, who beat St Pat's in their Conference League play-off last summer.