One of Jupp Heynckes' first moves after returning to Bayern Munich last month was to restore Javi Martinez to the defensive midfield role in which he excelled during the veteran coach's previous spell, and so far the results have been spectacular.

Martinez's knowledge of the position in question is one of the factors underlying Bayern's dramatic upswing in fortunes since Heynckes returned to Säbener Strasse for a fourth stint at the helm. After being deployed as a central defender by previous coaches Pep Guardiola and Carlo Ancelotti, the former Spain international has returned to his favoured role - the very one that Heynckes had in mind when he signed him for a then club record fee from Athletic Bilbao in August 2012.

"Javi has played in central defence before, but I have a rather different opinion," the 72-year-old said. "Since he's been playing in midfield we've improved our stability and the quality of our defensive work."

No wonder Bayern have won their last seven matches in all competitions...