After Mercedes, Force India and Renault have finalized their driver line-up for 2018 season in the past week, the seat at Williams is the most coveted one for the drivers.
Williams, in a collaboration with title sponsors Martini, have a condition in their contract that one of their drivers has to be 25 or above. Considering Lance Stroll will only turn 19 in October, the driver alongside him has to be at least 25 years old to fulfill their contract with Martini.
This puts drivers such as Mercedes protege Pascal Wehrlein out of contention; he is just 22 as of now. So here is a look at 5 drivers who can be racing for Williams next season.
The driver who had the shortest retirement ever in F1 history was back in Australia after Valterri Bottas was called up by Mercedes to replace World Champion Nico Rosberg after his retirement. This decision raised a few eyebrows but the Williams management wanted one of their drivers from last season to help them develop the car.
The Brazilian was impressive early on in the season, out-qualifying the rookie Stroll comfortably. But after the Canadian upped his game it has been very tough to choose between the two, especially after the Hungarian Grand Prix - where he suffered from 'vertigo' and couldn't take part in the race.
Felipe Massa has expressed his interest in taking part in Formula E after he is done with Formula One but he didn't mention the year in which he will be finished after coming back from retirement. If Williams want someone to mentor the promising Lance Stroll, they would want Massa in their driver line-up - a man who is vastly experienced and will make his 264th race start in Malaysia next week.