His record of six goals in eight games overall for Sporting against the Dragons earned him the nickname the 'Dragon Slayer'.
“Yes, I spoke with him about Porto," confirmed Ranieri. “He came to me and I went to him.
“We have a lot of respect for Porto, they are a lot more experienced team in Europe. They have played so many matches in the Champions League and are used to staying at the top of their league and have won six titles in the last 10 years.
“We respect them a lot but we will also try to win. Of course Slimani has scored so many times against Porto. I'm sure he'll be a threat to them."