1: "Mercedes' door still open for Carlos Sainz"

2: "Sainz has a chance to join Mercedes"

3: "Will Carlos Sainz make the move to Mercedes?"

4: "Mercedes considering Carlos Sainz for the team"

5: "Carlos Sainz in contention for Mercedes seat"

6: "Is Carlos Sainz a good fit for Mercedes team?"

7: "Mercedes door remains open for Sainz"

8: "Carlos Sainz still has a shot at Mercedes drive"

9: "Sainz's future with Mercedes still uncertain"