Mercedes secures third and fourth positions in the Formula One season opener in Australia after challenging an untelevised penalty.

Mercedes made the call to replace Lewis Hamilton with young phenom Andrea Kimi Antonelli, and the 18-year-old dazzled in his debut, finishing fourth in challenging conditions after starting in P16. For a moment it looked as if Antonelli would be demoted to fifth due to a five-second penalty that was assessed for an unsafe release,