Reigning 400m Olympic champion Van Niekerk tests positive for coronavirus- The New Indian Express
Kirani James [GRN] - Men's 400m | Champions of London 2012 - YouTube
Men's 400m world record holder Wayde van Niekerk has COVID-19 | Buzz
400m women - Olympic Athletics
US and Olympic champion Jeremy Wariner winning the 400m at the Stock Photo - Alamy
Olympic champ Wayde van Niekerk back running, hopes to defend title in Tokyo | CBC Sports
400 metres - Wikipedia
Olympic champion Dalilah Muhammad shatters 16-year 400m hurdles world record at US Championships - Sports News , Firstpost
Michael Johnson: Four-time Olympic champion recovering after 'mini-stroke' - BBC Sport
400 Metres
South African beats Michael Johnson's 17-year-old 400m world record for gold – The Denver Post
Cathy FREEMAN - 400m silver medal at Atlanta Olympic Games. - Australia
Olympic 400m champion beats Michael Johnson's mark with 30.81, while Usain Bolt and Mo Farah are also among the winners a… | Wayde van niekerk, Van niekerk, Ostrava
Olympic champion Wayde van Niekerk tests positive for coronavirus | The Independent | The Independent
Report: men's 400m final – Rio 2016 Olympic Games| News
Shaunae Miller is the women's 400m Olympic Champion - YouTube
Wayde van Niekerk: Olympic champion wants 'untouchable' 400m legacy - Famous Times
Steve LEWIS - 1988 Olympic Games 400m Champion. - U.S.A.
Wayde van Niekerk: 'Positive' 400m world record-holder welcomes Olympic postponement - BBC Sport
Harrowing end to the women's 400m final as Shaunae Miller-Uibo dramatically pulls up