Ronaldo Guiaro

Born in Piracicaba, São Paulo, Ronaldo started playing with Guarani, moving to Atlético Mineiro shortly after. In 1996, aged 22, he joined S.L. Benfica in Portugal, backing up Jorge Bermúdez and Hélder Cristóvão in his first season but became the club's first-choice afterwards as they failed to win any silverware. After five seasons with Benfica, Ronaldo signed for Beşiktaş J.K. in Turkey. There, he was also an undisputed starter for the majority of his spell. In the 2002–03 season, he only missed one match in the Süper Lig as the Istanbul team won the title after eight years. Aged 31, Ronaldo returned to his native Brazil. But two years later, he moved abroad again to join Aris in the Super League Greece as a defensive mainstay. He played for the Greek club for several seasons, helping them qualify three times to the UEFA Cup, now known as the UEFA Europa League.

Ronaldo represented the bronze medal-winning Brazil squad at the 1996 Summer Olympics, playing in all matches. Another Ronaldo was also present in the squad, but he wore "Ronaldinho" (meaning "little Ronaldo") on the back of his shirt since Ronaldo was two years older than him. He also made one appearance for the senior team in 1996.

Atlético Mineiro

Campeonato Mineiro: 1995 Benfica

Taça de Portugal runner-up: 1996–97 Beşiktaş

Süper Lig: 2002–03 Turkish Cup runner-up: 2001–02 Santos

Campeonato Paulista: 2006, 2007 Aris

Greek Football Cup runner-up: 2007–08, 2009–10 Brazil

Summer Olympic Games: Bronze medal 1996 Individual

Beşiktaş J.K. Squads of Century (Silver Team)