Jolyon Palmer will be replaced by Carlos Sainz Jr. at Renault from the next race in the United States.

Palmer was already set to be replaced by Sainz in 2018, but revealed on social media that the Japanese Grand Prix will his last at Renault.

“Tomorrow’s Japanese GP will be my last race for Renault,” he wrote on Instagram.

“With my grid penalty I’ll be starting near the back but I will be giving it my all as always.

“Thanks everyone for the support during the last two years, it means a lot!”

Renault has since confirmed that Palmer will be leaving the team after this weekend.

While it has not officially confirmed his replacement, Scuderia Toro Rosso has since announced that Sainz will be released effective the end of this weekend.

Furthermore, in the statement released by STR, Sainz said, “First of all I would like to thank Toro Rosso and Red Bull for allowing me the possibility of finishing this season with Renault Sport Racing.”

Palmer has faced doubts about his immediate future at the team ever since it emerged that Sainz had been signed for 2018.

However, his sixth-placed finish in the Singapore Grand Prix initially appeared to ease pressure on Renault regarding Palmer’s place at the team.

Toro Rosso subsequently confirmed that Daniil Kvyat will return to the team alongside Pierre Gasly at the United States Grand Prix.

The decision means Gasly will lose the opportunity to win the Super Formula title at Japan as it clashes with the Austin event.