Cika jumla mai zuwa: A ranar 27 ga Yuni, 2017, bayan dawowa daga
A gasar zakarun Turai ta 'yan kasa da shekaru 21, Fernandes ya koma Sporting CP kan yarjejeniyar shekara biyar, don kudin da aka ruwaito na Euro miliyan 8.5 da kari. Ya zira kwallaye hudu a wasanninsa biyar na farko na Primeira Liga, gami da kwallo a wasan da suka ci Vitória de Guimarães da ci 5-0. Farkon fitowar Fernandes a wasan rukuni na UEFA Champions League ya kasance a ranar 12 ga Satumba, inda ya sa baƙi suka ci 3-0 a minti na 43 na nasarar da suka samu a 3-2 a Olympiacos FC. Ya gama kakar wasa ta farko tare da kwallaye 16 a duk faɗin gasa, na biyu kawai ga Bas Dost.