PORTO, PORTUGAL - OCTOBER 03: Iker Casillas of FC Porto in action during the UEFA Champions League Group D match between FC Porto and Galatasaray at Estadio do Dragao on October 3, 2018 in Porto, Portugal. (Photo by Gualter Fatia/Getty Images)
PORTO, PORTUGAL - OCTOBER 03: Iker Casillas of FC Porto in action during the UEFA Champions League Group D match between FC Porto and Galatasaray at Estadio do Dragao on October 3, 2018 in Porto, Portugal. (Photo by Gualter Fatia/Getty Images)