Daniel Ricciardo's shock switch to Renault and Fernando Alonso's decision to quit Formula One at the end of 2018 blew the F1 driver market wide open over F1's summer break. ESPN looks at the remaining seats needing to be filled and who the candidates are.
Mercedes
Lewis Hamilton, Valtteri Bottas
Mercedes locked down its current driver line-up during its home race in Germany. Valtteri Bottas has been retained on another single year deal, while Lewis Hamilton will remain with the team until the end of 2020.