MATCH FACTS

68% of away sides to draw the first leg of a Champions League knockout tie 1-1 progress to the next round (23/34).

This will be the 14th meeting between these sides in the Champions League – only two fixtures have been played more often in the competition (Bayern v Real Madrid 18, Barcelona v Milan 15).

Chelsea are unbeaten in their last eight Champions League games against Barcelona (W2 D6).