Kubica on returning to Formula 1

Robert Kubica returns to Formula 1 next season and has described the moment he realised his return was possible as "the most important day of my life."

Kubica's Formula 1 career appeared to come to an end in 2011 after a rally accident left him with a partially amputated arm.

Eight years later the Pole is back. When speaking to Sky, Kubica describes when he realised a return to F1 was possible.

"Twelve months ago l realised l can do it and realised l could drive as naturally as l did before," Kubica revealed to Sky F1.

Due to his injury, Kubica has had to develop his driving technique but is confident that this will not impact his speed.

"My doubts were gone last year in my second or third test in an F1 car. The question marks were related to a technical point of view: how the new car will suit you, how the new tyres will suit you. But this is the same for every driver in the paddock," he said.

Williams are fully behind Kubica and the fact that he brought along with him a lucrative sponsorship deal could mean that Williams will become more competitive in years to come.