The Spaniard believes that his players must defend as a team against the Swedish striker in the first leg of their Champions League last-16 tie at the Mestalla.
"Zlatan Ibrahimovic is a great player and we have to take him into account, not just Adil Rami but the whole defence.
"He does incredible things and he's a good scorer; he comes down to defend if the team needs him. This isn't just a job for Rami, but for the whole team."
Valencia will head into the game on the back of a 1-0 away win against Celta Vigo in La Liga on Saturday.