Marquez has rejoined in 16th ahead of Bastianini and Quartararo.
Miller is now onto the podium in third, two seconds behind Martin.
Lap 15/26
That gives Martin second for now, but there's a massive gap of 2.5s between Martin and Bagnaia now.
incident
Marquez has crashed at Turn 8! He tried to save it but he couldn't do anything about it. Massive relief for Bagnaia.
lap 14/26
Martin is 1.6s behind Marquez at this stage of the race.
Marquez goes for the lead at the last corner. He runs wide and Bagnaia comes back through.
lap 13/26
Marquez sets the fastest lap of the race. Bagnaia's lead is under half a second now.
Martin has dropped a second to Marquez. He's really, really struggling is the championship leader.
lap 12/26
Onto lap 12 and it's as you were at the front. Bagnaia's lead up to 0.5s. His pace is great. Martin looks very uncomfortable in third.
lap 11/26
Bagnaia sets the fastest lap as he holds a 0.3s lead over Marquez.
Martin has run off track at Turn 4. Not too costly but that's another mistake in this race. That will be rattling his confidence again.
lap 10/26
Marquez tried to take the lead at the last corner but ran wide. Bagnaia leads onto lap 10. Martin close behind. It's all going on here!
incident
Bastianini has crashed! He's gone down at Turn 8.
Martin has recovered his pace too and has gapped the KTMs. He's closing in on Marquez and Bagnaia ahead.
lap 9/26
Bagnaia's lead us under four tenths to start lap nine as Acosta runs off at Turn 1.
incident
Morbidelli has crashed out of the race now at Turn 8.
lap 8/26
Bagnaia leads by 0.6s over Marquez, while Morbidelli is the fastest rider on track in eighth.
incident
Raul Fernandez has crashed now.
Martin's confidence has clearly been knocked by that earlier run-off at Turn 3. He'll need to get the pace up soon, though, as he has the factory KTMs breathing down his neck.
lap 7/27
Onto lap seven and Bagnaia continues to lead, 0.8s clear of Marquez who is 0.9s clear of Martin.
Incident
Savadori has crashed and Morbidelli has served his long lap penalty. He has only dropped to eighth.
lap 6/26
Bagnaia is a second clear of Marquez, who is 0.572s clear of Martin. Binder is closing the podium down quickly.
penalty
Morbidelli given a long lap penalty.
Martin's lead had already come down on lap four and now he's handed the advantage to his championship rival.
lap 5/26
Martin has run off track at Turn 3! He loses the lead to Bagnaia and is now third.