David Rudisha (R) of Kenya leads the men's 800m at the IAAF Diamond League athletics meet in Doha May 10, 2013. REUTERS/Fadi Al-Assaad

 
David Rudisha (R) of Kenya leads the men
David Rudisha (R) of Kenya leads the men's 800m at the IAAF Diamond League athletics meet in Doha May 10, 2013 file photo. REUTERS/Fadi Al-Assaad