Alex Albon has refused to rule out a return to Red Bull in the future despite recently signing a new multi-year deal with Williams.
The Thai-British driver raced with Red Bull for 26 grands prix across the 2019 and '20 seasons after rising through the ranks as a junior with the team.
But Albon was dropped in favour of Sergio Perez after failing to live up to the team's high expectations in his second season and spent a year in a reserve driver role last term.
Ahead of the current season, Williams arranged a loan deal to sign the 26-year-old and although Albon remarked that Red Bull had sent him out "on my own with my backpack", he has left the door open for a return.
"I’d say Red Bull is the same as any other team, there is always an option on any driver at any given time," said Albon. "That’s how it is.
"Obviously, I have a strong relationship with Red Bull from when I was 12 years old, so I still get on very well with everyone there but that is different now in that I am a Williams driver by myself."