Zanetti insists the two Argentine strikers can play together.
"We're fortunate to have Lautaro," he told Goal Italy. "He's a big surprise for me as I didn't know him personally, but I saw him play and I liked him a lot.
"He's doing well and will have a great future.
"Icardi is a well known goalscorer, we are lucky to have him at Inter and I think he and Lautaro represent the future."