Russell stamps his authority as Antonelli's crash clouds Mercedes' perfect morning

George Russell ended FP3 at the top of the timesheets with a lap that left little room for debate. His 1:19.053s, set in the closing moments of a disrupted session, put him 0.616 seconds clear of Lewis Hamilton and confirmed what Friday's long-run data had already been hinting at: Mercedes may be the team to beat this weekend.

The session was a chaotic one by any measure, with two red flags, a last-minute FIA U-turn on regulations, and a heavy crash from Russell's team-mate that has left the paddock uncertain whether Antonelli will be ready to qualify.

Full FP3 results

Before a wheel was turned

The session nearly started in chaos before it had begun. The FIA announced it was removing the Straight Mode zone on the run from Turns 6 to 9, citing safety grounds, prompting an immediate revolt from teams who had already begun adjusting their set-ups. The governing body reversed the decision before running began. For a regulation that is already stretching every team's engineering resource, announcing a significant energy harvesting change two hours before FP3 was not a popular move.

A barrier repair following an incident in Formula 3 also delayed the start of the session. By the time cars left the pit lane, the morning had already been eventful enough.

Two red flags and a session that never settled

Carlos Sainz brought out the first stoppage nine minutes in, grinding to a halt at the pit entry. The Spaniard was unable to return to the session. It was a painful echo of Alex Albon's hydraulic failure on Friday.

Stroll, meanwhile, did not take part at all. Aston Martin confirmed a suspected issue with the internal combustion engine had prevented his AMR26 from being rebuilt in time. Given the team arrived in Melbourne already short on working batteries, it is a situation that is getting harder to explain away as bad luck.

The session found a rhythm after the Sainz stoppage, with lap times tumbling as teams worked through soft-tyre runs. Leclerc led the times at the halfway point, with Piastri briefly taking the top spot before the Monegasque reclaimed it. Then, with four minutes remaining, the second red flag came out.

Antonelli's crash and the question it raises

Kimi Antonelli went heavy into the barriers at Turn 2, ending his session early and leaving his mechanics with a race against the clock to get the car rebuilt before qualifying.

It was not his first high-profile practice incident. Sky Sports F1's Ted Kravitz drew a direct parallel with the crash Antonelli had at Monza in 2024, during his first practice outing before becoming a fully-fledged F1 driver, and warned of the potential knock-on effect for the rest of his season.

There is a fair counter-argument. Antonelli's FP3 lap before the accident was quick enough for seventh, and the broader picture across Friday suggested a driver very much at home in the W17. But crashes have a way of getting inside a driver's head. At 18, managing that is part of the education.

Russell's lap, and what it means

When the session resumed with four minutes left, Russell went to the front of the pit lane queue and delivered. His 1:19.053s left him 0.774s clear of Leclerc, with Hamilton slotting in between them after the chequered flag.

The margin is significant. A second clear of Piastri in fourth. Over a second to Verstappen. Rivals will have noted that Russell was on course for an even faster lap before Antonelli's crash forced him to abort it.

That tracks with what Friday showed. Russell's average on a 12-lap hard-tyre stint in FP2 was nearly 0.7 seconds per lap faster than Hamilton's comparable run at Ferrari. The single-lap pace in FP3 suggests the race-pace advantage was not a fluke.

Ferrari remain genuinely competitive, and Hamilton in second is no small statement for his first qualifying at Maranello. McLaren and Red Bull will find something. They always do. But right now, the W17 looks like the car to have.