The former Chelsea, Manchester United, and Tottenham Hotspur boss was asked by The Obi One Podcast to choose between Sir Alex Ferguson and Pep Guardiola. Source: Getty ImagesMourinho compares Guardiola and FergusonBut instead, Mourinho cited the remarkable achievements of another Premier League legend. But both of them are historical in the Premier League." Mourinho names Premier League's greatest managerDespite acknowledging the significance of Ferguson and Guardiola, Mourinho singled out Claudio Ranieri for what he called the most extraordinary accomplishment in the league’s history. Under Ranieri’s leadership, Leicester achieved one of the greatest sporting stories of all time, winning their first and only Premier League title in the 2015/16 season.