The season is considered one of the best in Ronaldinho's career as he was an instrumental part of Barcelona's first Champions League title in 14 years. After winning their group convincingly, Barcelona faced Chelsea in the round of 16 for a rematch of the previous year. Ronaldinho scored a decisive goal in the second leg, going past three Chelsea defenders on the edge of the penalty area before beating the goalkeeper, sealing Barcelona's qualification to the next round. He also contributed one goal in Barcelona's elimination of Benfica in the quarter-finals with a 2–0 home victory. After a 1–0 semi-final aggregate win over Milan, in which Ronaldinho assisted the series' only goal by Ludovic Giuly, Barcelona progressed to the Champions League Final, which they won on 17 May 2006 with a 2–1 beating of Arsenal. Two weeks earlier, Barcelona had clinched their second-straight La Liga title with a 1–0 win over Celta de Vigo, giving Ronaldinho his first career double.