Kubica confirms he will leave Williams at end of 2019

Speaking at a press conference ahead of the Singapore Grand Prix, Kubica said he had decided to leave Williams "in order to evaluate our opportunities" for the future. DIEGO AZUBEL/PAP/EPA

Robert Kubica has said he will leave Williams at the end of the 2019 season.

Posting on Williams Racing official Twitter, the racing ace whose return to F1 after a serious injury represented one of sport's great comeback stories said: “I feel that the time is now right for me to move on to the next chapter in my career.”

Williams confirmed the 34-year-old had decided to leave in a post on Twitter.ROKiT Williams Racing/Twitter

He added: "I have to do what will bring me back a bit of joy of racing."

Speaking at a press conference ahead of the Singapore Grand Prix, Kubica said he had decided to leave Williams "in order to evaluate our opportunities" for the future.

Kubica posted on Twitter: “I have enjoyed my time with ROKiT Williams Racing...but I feel that the time is now right for me to move on to the next chapter in my career.”ROKiT Williams Racing/Twitter

He said: “I always say I took a lot of energy, a lot of time for me to recover, to come back to the sport.

“Since I joined F1, I would like to stay. I said this year it would be a goal to remain in F1, but not for every cost, and I think I have to first of all do what will bring me back a bit of joy of racing.

Daniel Obajtek, CEO of Orlen which sponsors Kubica, said the petroleum giant would continue to do so. He said: Tomasz Gzell/PAP

“Of course this season has been very tough from a performance point of view, but it has [also] been very demanding. Being back in F1 after a long time is not easy, especially when you are in a difficult situation like we are.

"Nevertheless I have to thank the team for the opportunity and will see what the future will bring.”

Kubica returned to F1 after eight years following an accident that nearly severed his arm and left him with multiple body fractures.Tytus Żmijewski/PAP

The 34-year-old’s sponsor, Polish petroleum giant PKN Orlen, said that it will continue sponsoring Kubica.

Orlen said talks in the matter with several Formula 1 teams were "advanced."

At the press conference in Singapore, Kubica said: “Of course this season has been very tough from a performance point of view, but it has [also] been very demanding.”WALLACE WOON/PAP/EPA

CEO Daniel Obajtek said: "Since the outset of our cooperation we have declared our support for Robert Kubica regardless of circumstances, and this is why he will remain on the Orlen team. (...).

“We plan to continue in Formula 1 to make the Orlen brand more internationally recognisable, especially on markets where we have a retail network."

Kubica will continue racing for Williams until the end of this season.