Ferrari have confirmed that they will use two reserve drivers for the F1 2023 season, with Antonio Giovinazzi and Robert Shwartzman combining duties. With Giovinazzi participating in their World Endurance Championship Hypercar programme, the Italian will be unavailable for all Grand Prix weekends. As a result, long-time development driver Shwartzman will share the reserve driver duties, with Ferrari aiming to have a reserve driver at event F1 race weekend. Giovinazzi had been linked with a Haas drive for 2023, but fell short of the requirements after an unsuccessful free practice outing at last season's US Grand Prix. Shwartzman helped to…