Original sentence: In 2007 Osaka, he is one of the leaders, who could compete for a medal.James Beckford (born January 9, 1975 in Saint Mary, Jamaica) is a Jamaican athlete competing in the long jump
Edited sentence: James Beckford (born January 9, 1975 in Saint Mary, Jamaica) is a Jamaican one of the best long jump athlete of all time, competing in the long jump