Brazil's Olympic football men's team captain Dani Alves has played on the game's biggest stages but says he is still feeling pre-tournament 'butterflies' ahead of Thursday's opener against Germany.
The 38-year-old has made 118 appearances for the full Brazil national team, featuring in two World Cups and at club level he won three Champions League titles with Barcelona but is set for his debut in the Games as an over-age player for the defending gold medallists.