• Wolfsburg and Real Madrid have never previously met. Wolfsburg’s Julian Draxler was in the Schalke team beaten by Madrid in the 2013/14 round of 16.
• Bayern have won four of their six matches against Benfica, drawing the other two. The clubs have not played each other since 1995.
• Barcelona have won their last six fixtures against Atlético in all competitions, Lionel Messi scoring in five of them.
• Messi has registered 25 goals in 27 games against Atlético, including three hat-tricks.
• Barcelona and Atlético came together in the 2013/14 quarter-finals, Atletico winning 1-0 at home after a 1-1 away draw.
• This is the third year running Atlético have faced a Spanish side in the quarter-finals – they lost 1-0 to Madrid over two legs 12 months ago.
• Paris and Manchester City played out a 0-0 draw at the City of Manchester Stadium in the 2008/09 UEFA Cup group stage, their only past encounter.