Can Arsenal scupper Lahm’s swansong plans?

Bayern Munich against Arsenal has become a Champions League hardy perennial. Tomorrow night’s match takes on added significance following Philipp Lahm’s announcement that he will retire at the end of the season.

You might call it unusual for a club captain to make such a statement so close to a crucial European tie, but then Lahm has never been the conventional type.

On the pitch, he is a right-back who reluctantly played on the left for the first five years of his career, and then was required to switch to midfield.