Leclerc has secured four consecutive pole positions heading to Japan this weekend, converting two into victories in Belgium and Italy.
Vettel took victory in Singapore after a favourable strategy that annoyed Leclerc, with relations becoming more strained when the German ignored team orders in an attempt to keep hold of the lead in Russia last time out – a row that proved immaterial as Vettel's retirement preceded Hamilton leading a Mercedes one-two in Sochi.
Speaking in Suzuka, Leclerc said that the plan in Sochi had not been made clear enough to the drivers, but both were keen to move on after more radio rants in Russia.
When asked if Vettel and Leclerc's rivalry could benefit Mercedes, Hamilton said: "No, because I don't think we need help. That's not the way I look at things.
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