Ghana effectively pushed Nigeria out of world championships relay qualification by running 38.30 to win the All Africa games relay gold medal. Ghana time takes them to 13th in d world and pushes Nigeria from 16th to 17th, if Nigeria fails to improve on their 38.52s before September 6, Nigeria will not qualify for d 4 x100m M relay at Doha despite having a potentially very good team. The female team might also be knocked out tonight in Zurich if any non qualifying team surpass their 42.75s .