Britian's Mohammed Farah (2ndL) trips in [Getty Images]

Britian's Mohammed Farah (2ndL) trips infront of USA's Bernard Lagat (L) as Uganda's Moses Ndiema Kipsiro, Ethiopia's Tariku Bekele (R) compete during the men's 5000m final, 02 September 2007, at the 11th IAAF World Athletics Championships, in Osaka. USA's Bernard Lagat won ahead of Kenya's Eliud Kipchoge and Uganda's Moses Ndiema Kipsiro. AFP PHOTO / KAZUHIRO NOGI (Photo credit should read KAZUHIRO NOGI/AFP via Getty Images)

AFP KAZUHIRO NOGI