As a player, Valencia coach Gennaro Gattuso, a World Cup winner with Italy in 2006, was tenacious and fiery. He was once sent off for slapping Zlatan Ibrahimovic in the face with the back of his hand. Then there was the time he squared up to Tottenham Hotspur coach Joe Jordan, pushing him in the throat and later admitting he "lost control" after being provoked.
Gattuso was also a talented player. He added bite to an exquisite AC Milan midfield that boasted Andrea Pirlo, Clarence Seedorf and Kaka, three of the best of their generation.