Fourth-placed Freiburg play host to Eintracht Frankfurt this weekend, now just two points above them in third. As it stands, both sides are heading for the Champions League, but should they lose this one or, indeed, in Freiburg’s case, even draw it, each can also still be overhauled at the last by Dortmund. It’s a riveting scenario – a direct head-to-head, on the final matchday, for a place in Europe’s top club tournament.