Great Britain's Mo Farah says he is a "clean athlete" after a leaked report suggested his American coach may have broken anti-doping rules to boost the performance of some of his athletes.
Banned cyclist Lance Armstrong's fight against a $100m (£79m) lawsuit by the US government has been set for a trial starting in Washington on 6 November.
Africa will be looking to double the number of places it has at an expanded World Cup from 2026.
Arsenal avoided an FA Cup giant-killing and spared manager Arsene Wenger further pressure with a hard-fought fifth-round victory over non-league Sutton United at Gander Green Lane.
South Africa's Mamelodi Sundowns totally dominated TP Mazembe of the Democratic Republic of Congo to win the African Super Cup at Loftus Versfeld in Pretoria on Saturday but needed a late penalty to take the trophy.
Zlatan Ibrahimovic scored a hat-trick as Manchester United opened up a commanding Europa League last-32 lead against Saint-Etienne.
At least 39% of players who played in the English Football League last season were not drugs tested by UK Anti-Doping (Ukad) according to official figures.