1: "Red Bull gives Perez deadline for F1 replacement role"

2: "Sergio Perez ready to step in as F1 driver for Red Bull"

3: "Perez on standby as Red Bull sets deadline for F1 decision"

4: "Red Bull to replace F1 driver with Sergio Perez on deadline"

5: "Perez ready to join Red Bull F1 team as replacement driver"

6: "Sergio Perez awaits Red Bull's deadline for F1 driver role"

7: "Red Bull expects decision on F1 replacement driver Perez"

8: "Perez prepared to replace F1 driver under Red Bull's deadline"

9: "Red Bull sets deadline for F1 driver swap with Sergio Perez"