Napoli chief Riccardo Bigon has confirmed they're keen on Porto pair Jackson Martinez and Juan Iturbe.
Iturbe is on-loan at Hellas Verona this season.
Bigon said: "A lot was said about Jackson Martinez during the summer but with the arrival of Gonzalo Higuain, things went very well for us.
"However, I don't hide that we are interested in him as well as other FC Porto players.
"When it comes to Iturbe we just need to talk with Verona, as they have the option to buy them, we don't need to talk with FC Porto, but it's always a pleasure to talk with them, as they know how to run football at a very high level."
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