 Complete the following phrase:  His greatest performance on the global stage came at the 1997 World Championships in Athletics, where he finished seventh in the final. He was the 400 metres bronze medallist at the 1995 Military World Games. He won three international 800 m medals in his career: silver at the 1997 IAAF Grand Prix Final, gold at the 1998 Goodwill Games, and silver at the 