Fernando Alonso won't take part in the Bahrain Grand Prix after failing a medical test following his crash at the season-opening race.

FIA said the McLaren driver was not allowed to compete on Thursday after chest scans showed "there was insufficient resolution of the signs to allow him to compete on safety grounds."

Alonso will take further medical tests before next month's Chinese Grand Prix, "and the results will be considered before allowing him to race there."

McLaren reserve driver Stoffel Vandoorne will replace Alonso in Bahrain, making his F1 debut.

Alonso escaped a high-speed crash at the Australian Grand Prix this month. His car was launched into the trackside concrete barrier and was sent into a roll, flipping twice before coming to rest in a crumpled wreck.