Nigeria U23s coach Samson Siasia has officially revealed his starting XI, ahead of the Group B clash between his side and Colombia in Sao Paulo at the Olympic Games.<br /><br />And true to his words, he has made some changes to the starting XI that made the roster against Sweden and Japan, bringing in five new players. <br /><br />Chippa United netminder Daniel Akpeyi will be in between the pipes, while the defense is made up of William Troost Ekong, Kingsley Madu, Sincere Seth and Ndifreke.<br /><br />Skipper John Obi Mikel starts in midfield alongside Azubuike Okechukwu and Popoola. <br /><br />Oghenekaro Etebo, Sadiq Umar and Umar Aminu will lead the charge for goals. <br /><br /><b>Dream Team Starting XI </b>: Akpeyi, Ekong, Seth, Ndifreke, Madu, Mikel, Okechukwu, Popoola, Etebo, Sadiq, Aminu.<br /><br />Ifeanyi Emmanuel <br />