Bernie Ecclestone believes Robert Kubica's place is back in Formula 1, with the former supremo convinced the Pole can come back even stronger than before.
Kubica has ramped up his comeback efforts this year, putting himself through his paces and to the task during various tests.
The former Renault driver joined the French team in Hungary over the summer at the post-GP test organized at the Budapest track, and ran for a full day yesterday with Williams, which has short-listed the Pole for 2018 along with Paul di Resta and incumbent Felipe Massa.
Ecclestone has no doubts about Kubica's ability to perform at the top level.
"If Robert had not have had his accident, then I think by now he would have been world champion anyway," Ecclestone told Autosport.
"I think he can come back even stronger than before.
"Mentally, I think probably he will be more aggressive than he was then: so I can only see good, good things for him.
"I don't think his injury will hold him back."
Kubica's comeback efforts are supported by Nico Rosberg's management team, and while many in F1 love the 'feel good' story his return embodies, it would also generate quite a marketing buzz, according to Ecclestone.
"If he does what I think he is going to do - be even better than before - then people will get behind him," said Ecclestone.
"He will be good to have for Formula 1. If I were Williams, I would definitely try to persuade him to join.
"Maybe they are going to lose Felipe Massa at the end of the year, I should think he has probably had enough, and if Robert is on board then he might wake up a lot of people there.
"The team hasn't been performing as well as it should have done, and whether it is because of drivers or the team in general, I don't know. Nobody knows.
"So it would be nice to get a guy who should be quick in the car to find out."
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