Osvaldo Giroldo Júnior, known as Juninho or Juninho Paulista, is a Brazilian former professional footballer who played as an attacking midfielder. During his professional career, Juninho played for Brazilian clubs São Paulo, Vasco da Gama, Palmeiras and Flamengo, as well as Middlesbrough in England, Atlético Madrid in Spain, Celtic in Scotland and Sydney FC in Australia. He is particularly associated with Middlesbrough, where he had three spells and became a popular figure among the club's supporters.