The Nigerian team put up a spirited display to beat a good Cameroonian side 2-1 in the second tie of their Davis Cup campaign in Nairobi.
Sylvester Emmanuel, 20, got the team the good start when he defeated 26-year-old Etienne Eboh 6-4, 6-4 in 84 minutes, but the Cameroonians drew level in the second rubber as Blaise Nkwenti made light work of Joseph Imeh with a 6-2, 6-1 victory.
Imeh, who turned 21 last month, shrugged off the defeat as he combined brilliantly with Sylvester Emmanuel to hold off the determined duo of Blaise Nkwenti and Cedric Ngoumtsa, winning 4-6, 7-6(7), 6-4 in 2 hours and 33 minutes.
Nigeria will face Benin Republic on Friday in a final round-robin tie to determine who finishes atop Pool A.
Benin Republic defeated Rwanda 3-0 to condemn the East Africans to the bottom of the Pool.