Itoje, 22, secured the No 4 jersey ahead of vastly experienced Alun Wyn Jones for the New Zealand Maori match on Saturday, in a side Warren Gatland has always said would resemble what trots out against for the first tests against the All Blacks at Eden Park, on June 24.
But Gatland has always allowed himself wriggle room, saying he's not showing his full hand, though the side is close to his test line-up.
So Itoje is not picturing himself as a test No 4.