The Egyptian and Senegalese forwards are two of the three African internationals shortlisted for the 2019 FIFA FIFPRO World11, with Napoli's Kalidou Koulibaly the other.
And Sissoko, who represented Mali during his career, believes the Reds duo set the perfect example for young people to follow in their home continent.
"These two players are amazing," the 34-year-old told Liverpoolfc.com. "They score a lot of goals, they give Liverpool a lot of energy, pace.
"I think they give a big image for Africa. To be honest, I'm very proud of these two players.