1: "Mercedes door remains open to Carlos Sainz"

2: "Still a chance for Carlos Sainz at Mercedes"

3: "Opportunity still awaits Carlos Sainz at Mercedes"

4: "Will Carlos Sainz make a move to Mercedes?"

5: "Carlos Sainz's potential move to Mercedes in the cards"

6: "Is Carlos Sainz the missing piece for Mercedes?"

7: "Mercedes door not closed for Carlos Sainz"

8: "Carlos Sainz's future with Mercedes uncertain"

9: "Could Carlos Sainz be the next Mercedes driver?"