Rio 2016 Olympics: 50km walker Alex Schwazer banned for eight years
Italy's 2008 Olympic 50km walk champion Alex Schwazer has been banned for eight years and will miss Rio 2016 after losing an appeal in a second doping case.
Schwazer, 31, helped Italy win the world 50km walk team title in May after a 45-month ban for a positive test for erythropoietin before London 2012.
A retest of a sample given in January showed traces of steroids.
The Court of Arbitration for Sport rejected his appeal.
"All competitive results obtained by Alex Schwazer from and including 1 January 2016 are disqualified with all resulting consequences, including forfeiture of medals, points and prizes," CAS said in a statement.
Schwazer had previously admitted to using the blood booster erythropoietin (EPO) in 2012.