Marcelo Bielsa has been coaching in football for more than three decades, forging a reputation as a deep thinker about the game and earning the moniker 'El Loco' in the process.
His methods and, indeed, madness have had a profound impact on many footballers who have played under him, as well as his contemporaries who have crossed swords on the touchline.
However, while Bielsa is admired by some of the most respected personalities in football, his trophy count does not seem to stack up with the legendary status that he enjoys.