Rubuta ci gaba don wannan sakin layi - Navas' kakar wasa ta biyar a Real Madrid ta fara ne da zuwan Thibaut Courtois da ake tsammani don yin gasa don lambar 1 mai tsaron gida. Duk da zuwan Courtois, an zaɓi Navas don yin wasa a gasar cin kofin UEFA ta 2018
wanda ya haifar da asarar 2 zuwa 4 ga abokan hamayyar Atlético Madrid. Navas sannan ya ci gaba da fara wasan farko na La Liga, yana jin daɗin kiyaye takardar farko ta farko a kakar wasa tare da nasara 2<unk>0 a kan Getafe CF. Wasannin da ya buga a gasar zakarun Turai ta baya-bayan nan ya sa aka zabe shi a matsayin mai tsaron raga na gasar zakarun Turai na 2017-18 wanda ya doke gasar daga mai tsaron raga na Roma Alisson Becker da mai tsaron raga na Juventus Gianluigi Buffon. A ranar 9 ga Janairun 2019 Navas ya buga wasan sa na 150 a duk gasa don Madrid a nasarar da suka yi a gida da Leganés a 3 × 0 a Copa del Rey. A ranar 6 ga Afrilu 2019 Navas ya zama mai tsaron gida na farko da ba ɗan Spain ba wanda ya kai wasanni 100 na La Liga don Real Madrid.