(Reuters) - Botswana's Nijel Amos has been provisionally suspended ahead of next week's World Championships after the 2012 Olympics 800 metres silver .
Nigel Amos provisionally suspended after positive test for banned substance modernghana.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from modernghana.com Daily Mail and Mail on Sunday newspapers.