1: The Mercedes door remains open for Carlos Sainz as a potential driver.

2: Sainz still has a chance to join the prestigious Mercedes team.

3: Mercedes is considering Sainz for a future seat in Formula 1.

4: Sainz's talent and experience make him a strong contender for Mercedes.

5: The door to Mercedes is not closed for Sainz yet.

6: Sainz's potential move to Mercedes is still a possibility.

7: Mercedes is keeping its options open regarding Sainz.

8: Sainz could be a valuable addition to the Mercedes team lineup.

9: The Mercedes-Sainz partnership is still in the realm of possibility.