In some of the most shocking driver moves in a generation, both double-champion Fernando Alonso and four-time-champion Sebastian Vettel are to leave their teams at the end of the season.
Red Bull have already confirmed that Vettel will leave at the end of the season, while Ferrari are expected to announce Alonso's departure imminently.
The moves mean that Vettel draws to a close an eight-year association with Red Bull Racing, where he picked up Toro Rosso's only victory in 2008 before going on to win four back-to-back titles between 2010-2013 with the senior Red Bull team.
On the other hand, Alonso brings to a close five impressive yet disappointing seasons with Ferrari, where a series of underperforming cars hampered his ability to consistently challenge at the top.
The consensus in the pitlane is that Vettel will be announced as Alonso's replacement at Ferrari, while Daniil Kvyat has already been confirmed as Vettel's replacement at Red Bull.
As for Alonso's new team, it is widely expected that he'll head back to McLaren. With the wounds from his messy departure from the team after a volatile 2008 season seemingly healed, it is expected that Alonso will be confirmed as the man who'll take charge when the struggling marquee is rejuvenated by the arrival of Honda's new power units.
However, there are also rumours that McLaren will stage an audacious attempt to lure both Vettel and Alonso to the team, giving them perhaps the strongest driver line up in the history of F1.
Regardless of where they end up, there can be no doubting that having two of the biggest names in F1 both on the market at the same time will have nearly every team scrambling for the phones in order to make their offers.
Where do you think Alonso and Vettel should end up? Could they ever work as teammates? Let us know in the comments below.