Simon Chapman

Zarco suffered leg injuries at Barcelona-Catalunya when he crashed his Honda and got tangled between the rear wheel and tail of Francesco Bagnaia's Ducati.

Having led the lion's share of the final stint and been swallowed up on the penultimate restart, Rosenqvist restarted the one-lap dash to the chequered flag in third.

Rain precluded competitors from qualifying, although practice will go ahead as planned at 7:40am AEST.

Mostert and Telitz had been a comfortable fourth in the GTD Pro class, 14 seconds off the lead and another 14 seconds clear of their nearest rivals with just under 20 minutes to go.

Series leader Alex Palou took pole position for Chip Ganassi Racing, his third straight after back-to-back efforts at Indianapolis.

Bezzecchi racked up his 10th career win and fourth of the season to continue his stranglehold on the MotoGP title race.

The three-hour race began with scenes that looked more like an online sim racing lobby than reality.

Hughes said he had contact with another car at the start before losing his brakes. From fifth on the grid, the Andretti Global driver failed to slow sufficiently and clipped the AJ Foyt Racing driver.

The Trackhouse Racing driver enjoyed a strong showing in Stage 1, leading laps before a balance shift made life difficult in Stage 2 and Stage 3 as his Chevrolet Camaro built tight.

Although he failed to score stage points in the 300-lapper, he delivered when it mattered most in the final stanza.