Doriva, Brazilian footballer and manager
Dorival Guidoni Júnior, known simply as Doriva (born 28 May 1972) is a Brazilian retired footballer who played as a central midfielder, and is the current assistant manager of Corinthians.
From 2003 until 2006, he played for English Premier League club Middlesbrough, winning the 2004 League Cup and finishing as runner-up in the 2005–06 UEFA Cup. He retired due to a misdiagnosed heart condition while playing for Brazilian club América-SP in 2007.
Doriva played for the Brazil national football team between 1995 and 1998, making a brief substitute appearance in the 1998 FIFA World Cup in which Brazil finished as runners-up.