Jack Greenwell

John Richard Greenwell was an English football manager and player. He is Barcelona's longest serving manager, having coached the club for ten consecutive seasons, later returning to coach for two more seasons in the 1930s. In 1939, Greenwell became the only non-South American coach to date to win the South American Championship when he guided Peru to their first win. He also served as a manager with CD Castellón, RCD Español, Valencia CF, Sporting de Gijón, Real Sociedad Alfonso XIII, Universitario de Deportes, and Independiente Santa Fe.