Napoli face Marseille in the Champions League tonight.
Benitez said: "We want to win tomorrow. If we end up in the Europa League, then that's okay. But we would like to get into the Last 16.
"It's easier to get out of the Champions League group than it is to win the Scudetto. And I say that because of a matter of timing.
"The last three months of the season are very long, and there is always a risk of getting major injuries."
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