But the visitors started the brighter in a rain - soaked Lisbon .
But the visitors went ahead when Cisse poked in at the back post for his 11th goal of the season after Sissoko burst free down the right flank and put in a perfect low cross .
But the visitors started the brighter in a rain - soaked Lisbon and went ahead when Cisse poked in at the back post for his 11th goal of the season after Sissoko burst free down the right flank and put in a perfect low cross .