sentences:  His versatility enabled Bayern Munich's effective adoption of a flexible tactical approach under manager Pep Guardiola, allowing the team to switch between different formations throughout the course of a single match.In addition to his good tackling, physical power, ability in the air, and defensive awareness, Martínez has also stood out for his passing ability, technique, and vision, as well as his strong mentality, which also enable him to play in a variety of midfield roles, including as a deep-lying playmaker.Ahead of Euro 2012, "The Globe and Mail" described Martínez as "a silky yet combative player."