Vettel struggled for consistency in 2019 after an error-strewn end to 2018 cost him in a title fight with Lewis Hamilton.
The emergence of Charles Leclerc and a Canadian Grand Prix which saw Vettel harshly stripped of victory prompted suggestions that the four-time world champion may be considering his future in Formula 1.
Perhaps now of more pressing concern for the former Red Bull driver is Hamilton's reported pursuit of a 2021 Ferrari seat, something the Scuderia's CEO Louis Camilleri recently said had "flattered" the top brass at Maranello.
With Leclerc on a contract understood to run to 2022, Vettel may need a spectacular start to next season if he is to convince Ferrari not to replace him with Hamilton, or another driver.
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