"I have a lot of rear-locking and instability," Hamilton reports over team radio.
Verstappen sets a 1m44.236s to go 0.7s clear of Piastri.
He slots into second behind Piastri, just a tenth off.
A strong early time from Piastri as he sets a 1m44.979s.
After 10 minutes: Verstappen, Antonelli, Alonso, RUssell, Leclerc, Norris, Tsunoda, Hulkenberg and Lawson.
Leclerc slots into second in the upgraded Ferrari, 0.4s down on Verstappen.
A 1m45.545s for Verstappen on the mediums, 0.5s ahead of Norris.
A 1m46.082s for Norris, a tenth ahead of Antonelli.
He's unable to accelerate currently and limping back to the pit lane.
60 minutes of practice is underway at Spa-Francorchamps. Expect a hectic session.
And that means there's just 60 minutes of practice ahead of sprint qualifying.
It's going to be an action-packed weekend, with rain in the air. It's dry currently ahead of FP1.
Hello everyone and welcome back to the Crash.net live blog for the Belgian Grand Prix.
The action kicks off at 11.30am UK time.
