Vettel is in his fifth season at Ferrari but is yet to win a title with Ferrari, with Mercedes being utterly dominant since 2014 winning every single World Championship since that year. Vettel, a four-time World Champion himself has been rumoured to be considering his position in the sport and many feel he could retire at the end of the season.
Leclerc is in his first season at Ferrari and even in the short time he has been working with the German, admitted he looks hungrier than ever but admitted he wasn't in a position to talk about his future but didn't want to see him quit.
"I don't see him quit. I can't speak for him, but he looks more motivated than ever and he works hard to do his best for the team," Leclerc told Bild.
"It's nice to see how he works. I think he's good dealing with the pressure because there is always pressure after you have won so many titles.
"Even if I beat him, that is no reason for him to stop."