BERLIN - Bayer Leverkusen's unbeaten run towards a first Bundesliga title has captured the headlines but a battle is raging a bit further behind between Borussia Dortmund and RB Leipzig for a top four finish and a spot in the lucrative Champions League next season.

Leaders Leverkusen, on 67 points, are 10 clear of second-placed Bayern Munich and look set to break the Bavarians' 11-year stranglehold on the league crown.