The talented striker has been linked with a move to Chelsea and Manchester United.
“Pazzini and Cassano away in January? No way, and also for the future, they remain important elements of our project,” Sampdoria sporting director Giuseppe Marotta told Sky Italia.
Sampdoria president Riccardo Garrone added: “In January we’ll be spectators, we don’t have specific interests, because I’m very happy with the current Samp squad.”