Samba time! Usain Bolt is accompanied by scantily-clad dancers as he hosts raucous press conference ahead of bid to win his third sprint treble

Even among the many physical attractions of Rio, one man who can stop the place dead is Usain St Leo Bolt. 


His only rival in that department is the traffic. He has remained the single great clean icon in these troubled times for athletics, though on the eve of his attempt to win a third treble of Olympic sprint titles of 100m, 200m and 4X100m relay, he could not entirely duck the question of where his sport stands.