Arturo Erasmo Vidal Pardo is a Chilean professional footballer who plays as a midfielder for Chilean Primera División club Colo-Colo and the Chile national team. His displays during his time at Juventus led him to be nicknamed Il Guerriero, Rey Arturo and La Piranha by the Italian press due to his hard-tackling and aggressive, tenacious style of play.

In the sport of association football, a midfielder is an outfield position which plays primarily in the middle of the pitch. Midfielders may play an exclusively defensive role, breaking up attacks, and are in that case known as defensive midfielders. As central midfielders often go across boundaries, with mobility and passing ability, they are often referred to as deep-lying midfielders, play-makers, box-to-box midfielders, or holding midfielders. There are also attacking midfielders with limited defensive assignments.