Borussia Dortmund and Real Madrid have met three times in this season's UEFA Champions League and the Spaniards are yet to come out on top. Ahead of their semi-final second leg, bundesliga.com takes a look at the key duels that could define the outcome on Tuesday evening.
Mats Hummels (r., against Edin Dzeko) has scored once and provided a single assist at Europe's top table this season. 48 per cent of the German international centre-back's long balls have found their intended targets, but, rather less positively, he has only won 62 per cent of his challenges
Karim Benzema (l.) has proven himself as a natural goalscorer in Europe's elite competition. The striker has netted four times in nine appearances this season, but boasts 30 goals to his name in 51 Champions League outings, which could see him start the second leg after being consigned to the bench in Dortmund.
Cristiano Ronaldo has been on fire in front of goal in the current Champions League campaign and tops the goalscoring charts with 12 goals to his name, a personal best. The Portuguese forward has scored at least once in his last six games, including Madrid's only goal in the first leg, his 50th Champions League strike.
For a player in his position, defensive midfielder
Mesut Özil (c.) has played a part in four goals in this year's Champions League, three of which have been scored against Borussia Dortmund. In the group stages the playmaker set up a goal in both fixtures as well as netting a late equaliser during the 2-2 draw in Madrid, his sole goal in the competition this season
Sami Khedira (r.) has featured nine times this term and created two goals during that time, however, he is yet to register with any of his 11 efforts on goal. The German international hasn't had his best season though, winning just 51 per cent of his challenges in the centre of the park
In his first-ever season in Europe's premier club competition,
Robert Lewandowski's four-goal salvo in the first leg against Madrid catapulted him into second place in the goalscoring charts behind Cristiano Ronaldo with ten goals. The Pole has twice provided assists, but more surprisingly has made the most challenges of any player (357), winning 42 per cent of them in the process
Pepe is the only Real Madrid player aside from Cristiano Ronaldo to feature in all ten Champions League matches this season. His first goal since 2005 came in the 2-2 draw against Dortmund earlier this season, while in defence the Portuguese centre-back has won 64 per cent of his challeneges