Raphinha hailed Manchester United as one of "the best teams in the world" ahead of his reunion with his former Premier League rivals.
The Brazilian, 26, left Leeds to join Barcelona in a £55million transfer last summer, when he was also linked with the Red Devils, Arsenal and Chelsea. He was one of the highest-rated wingers in England but has struggled since his move to Camp Nou, scoring four goals in 20 La Liga appearances.
While few would have predicted it at the start of the season, European giants Barca and United will lock horns on Thursday in the first of two play-off legs for a spot in the Europa League last 16. Despite the fact neither side are in the Champions League, Raphinha insists they are up there with the best in the business.