Athletics World Championships 2007 at Osaka (jpn) Men: 400 m August 31: Final: 1. Jeremy Wariner (usa) 43.45 2. LaShawn Merritt (usa) 43.96 3. Angelo Taylor (usa) 44.32 4. Chris Brown (bah) 44.45 5. Leslie Djhone (fra) 44.59 6. Tyler Christopher (can) 44.71 7. Johan Wissman (swe) 44.72 8. Avard Moncur (bah) 45.40