Ferrari now quick enough to win race this weekend?
The Maranello team, which is only just emerging from its 2020 performance slump, dominated the second practice session at Monaco on Thursday.
"I've always said that Ferrari is incredibly strong in the corners."
Sainz replied: "You will find out on Saturday."
Charles Leclerc, quickest overall on Thursday, said he expects to fall back behind the top two teams in qualifying.
Leclerc said: "It looks good right now - almost too good to be true."
Marko thinks Red Bull's Thursday struggles also flattered Ferrari's leading pace.
"Our opponents look very good and we look rather bad, so that makes the gap quite big," he said.
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