Their formidable partnership began in 2002, securing back-to-back Portuguese championships alongside their European triumphs. During their time at Porto, the duo won the UEFA Cup in the 2002-03 season, followed by the ultimate prize, the Champions League, in 2003-04. They also lifted the Portuguese Cup and Portuguese Super Cup.
When Mourinho moved to London to manage Chelsea, his trusted analyst followed. Together, they conquered England, winning two Premier League titles, two League Cups, one FA Cup and the Community Shield. Their journey continued at Inter, where they claimed the Serie A title and the Italian Super Cup during the 2008-09 campaign before Villas-Boas departed to begin his own managerial career.