Philipp Lahm joined FC Bayern Munich's academy in 1995, became a professional there and also retired at the club. From 2003 to 2005, he played for VfB Stuttgart on loan, before breaking through to the first team in Munich.
Lahm won eight Bundesliga titles with Bayern, helped his team to win six DFB-Pokal trophies and even won the Champions League in 2012/13. He made over 100 appearances for Germany and was captain when they became world champions in 2014.
In May 2017, you had your final encounter with RB Leipzig in what was a heated occasion. In the last few minutes of the game, your Bayern team managed to complete the comeback and win 5-4. What are your memories of the match?
It was a great game for the spectators, spectacular! For a defender like me, it isn't so great when you concede four goals (he laughs). The atmosphere here was sensational. So I am always glad when I have the chance to come to Leipzig again.
In the Bundesliga, it is unusually tight at the top of the table heading towards the end of the Hinrunde. What role will RB Leipzig have over the remainder of the season?
Firstly, I love the fact that the league is so even and exciting. Obviously the question is whether teams can keep this up all season. At the end of the day, FC Bayern will always pick up their points, because pound for pound, they have the strongest squad.
But it is nice and actually desirable that the Bundesliga remains exciting until the end of the season and RB Leipzig can play a big part in that. They have a good head coach and great structure in the club, you can see that. Therefore, Leipzig should be there or thereabouts at the end
You played for years at the very top and won the Champions League in 2013. How does this competition differ from the Bundesliga?
You get to play against the best teams and players in the world! Furthermore, evening games always generate a fantastic atmosphere. It makes any player excited!
How do you rate RB Leipzig's development on the way to the round of 16?
You see what can be achieved with a clear structure. Everyone at the club pulls in the same direction. The club is therefore rightly playing well in the Champions League.
I wish them the best of luck tomorrow. It is important that German teams do as well as possible in European competitions. And Leipzig are on the right track at the moment.