Jack Doohan says his Formula 1 race seat is likely coveted by all four of Alpine's reserve drivers, not just Franco Colapinto, as he heads into the Australian Grand Prix under pressure to perform.

Australian Formula 1 rookie Jack Doohan insists Alpine's decision to sign Argentine Franco Colapinto as a reserve driver has not added more pressure on him.

Jack Doohan is making his Albert Park Formula 1 debut this weekend. He has officially begun his first season as a full-time driver for Alpine after working his way up the global motorsport ranks. Plenty of fans may also recognise his surname – one which is synonymous with an Aussie motorsport legend.

Jack Doohan is facing a pressure-filled start to his F1 season as he bids to hold off the threat of being replaced by an Alpine reserve driver. The Australian driver faces an uncertain future as he makes his full-time debut in Formula 1,