Kenenisa Bekele's younger brother defeats the Kenyans in Brazil.
American Morgan Uceny runs world-leading 1500m time at the same meet.
He is searching for his fifth world title in the 10,000m.
He hopes to beat the great Kenenisa Bekele there.
He's been on a 16-month hiatus.
Who will win is anybody's guess.
The Ethiopian champion has been battling injury for over a year.
Dathan Ritzenhein's former coach thinks Ritz's form was just fine.
Bekele, Bolt, Richards-Ross all out of the series’ season-opener. Written by: Mario Fraioli With a whole host of big names set to
Bekele will look to take one of the few records he doesn’t own. Written by: Sean McKeon The Aviva Grand Prix, taking place this