Tyson Gay, Asafa Powell and Sherone Simpson all embroiled in athletics drug bust.
Even when judged against the inglorious and grubby scandals of the past 25 years this will go down as a dark day for athletics.
Mo Farah is unequivocal. "It's the big one," says the double Olympic champion of Sunday's 5,000m Diamond League race in Birmingham.
They played the theme to Star Wars at the Stadio Olimpico but there was nothing galactic about Usain Bolt's performance as he was surprisingly defeated by Justin Gatlin in the 100m at Rome's Golden Gala meeting.
Justin Gatlin and Mike Rodgers have warned their Jamaican rivals Usain Bolt and Yohan Blake that they intend to win a sprinting "dogfight" after securing a one-two in the 100m at the Diamond League opener in Doha.