IAAF president backs Africa to host athletics ' showpiece event in near future . Lamine Diack tells CNN that world championships are more affordable . Senegalese official says London 's legacy was important in winning 2017 bid . TL;DR The African Union is set to vote on a plan for the 2024 Summer Olympics.
IAAF president backs Africa to host athletics ' showpiece event in near future . Lamine Diack tells CNN that world championships are more affordable . Senegalese official says London 's legacy was important in winning 2017 bid . Diack confident he will not be found guilty of accepting illegal payments .