After an uneventful career as a midfielder in the Portuguese leagues, Mourinho moved into coaching, first as an interpreter for Sir Bobby Robson at Sporting CP and Porto, before gaining success as an assistant at Barcelona under both Robson and his successor, Louis van Gaal. After impressing with brief stints at Benfica and União de Leiria, Mourinho returned to Porto as manager in 2002, winning the Primeira Liga twice, a Taça de Portugal, the UEFA Cup, and the UEFA Champions League, Porto's first European Cup title since 1987. That success earned him a move to England with Chelsea in 2004, where he won two Premier League titles, a FA Cup, and two League Cups in his three seasons at the club, before he departed in 2007 amid reports of disagreements with club owner Roman Abramovich.