 Musi wa1 Chikunguru 2007, Tanko akagadzwa semubatsiri wemurairidzi weFreiburgs reserves, achisiya mushure memwedzi gumi nemasere pamwe chete naKarsten Neitzel kuenda kuJ1 Leagues Urawa Red Diamonds, uye kubatanazve neyaimbova mukuru weFreiburg Volker Finke pachinzvimbo chimwe chete. Muzhizha ra2011, akatanga kushanda pasi peStåle Solbakken pa1. FC Köln. Musi wa4 Chikumi 2013, Tanko akatangazve kudyidzana kwake naFinke sezvo wekutanga akabatana nevashandi vekudzidzisa vekupedzisira muchikwata chenyika cheCameroon. Muna Ndira 2012 akagadzwa semukuru weGhana nhabvu nhabvu, gore iro risati rasvikayeAfrica Cup of Nations. 