However, speaking at Il Festival dello Sport, per formula1news.co.uk, Sainz squashed any suggestion of a rift and said he and Leclerc are working towards a successful future with the prancing horse.
Carlos Sainz is the only non-Red Bull driver to win a Grand Prix this season with victory in SingaporeThere have been rumours of discontent between Carlos Sainz and Charles Leclerc but the Spaniard insists he 'trusts' his team-mate
Sainz: All the greats have raced for Ferrari
“I trust him (Leclerc) a lot," Sainz said at the festival. “I see him as honest, and I see his commitment to the team. And the important thing is to build the future together.
“All the great legends of F1 have been at Ferrari, except poor Ayrton (Senna), who didn’t have the opportunity. But Michael (Schumacher), Fernando (Alonso), (Gilles) Villeneuve – everyone. Every driver wants to be at Ferrari one day. Whoever says otherwise is lying.”
Ferrari team principal Frederic Vasseur is happy with both Carlos Sainz and Charles Leclerc
Vasseur: Sainz mentality is key
Also in attendance at the festival was Ferrari team principal Fred Vasseur, who appeared keen to keep both Sainz and Leclerc.
“The drivers are part of the performance, and we have two excellent ones – very good and competitive,” he said. “We have talked about them, and they are professionals. They know where the limits are, and so far, they have done a fantastic job.”
Frederic Vasseur is a fan of Carlos Sainz's mentality
When asked about Sainz, Vasseur acknowledged the driver's dedication and determination, suggesting that he has been putting in hard work to rectify areas requiring improvement.
“He is tenacious, which we see in every turn he takes," said Vasseur. "This year he has worked a lot on some things that slowed him down, and since Monza, he has changed his approach.
“In sport, talent is not enough. You have to constantly improve, and Carlos has this mentality.”