Binder is up to sixth ahead of Bastianini, Zarco, Marini and Bezzecchi.
Alex Marquez leads by 0.546s across the line. Quartararo is running the lap times of the Marquez brothers just about.
DiGia holds Acosta for fourth.
If Acosta and DiGia battle, that is good news for Quartararo's podium hopes.
Di Giannantono has gotten past Acosta.
Marc Marquez is the fastest rider on track but Alex Marquez leads by half a second still.
Quartararo holds third down the straight from Acosta.
Bagnaia has not made much progress. He's 20th on lap two.
Alex Marquez is now half a second clear after that early battle behind.
Marquez takes second from Acosta at Turn 1, while Quartararo is back to third.
Marc Marquez tries on Quartararo at Turn 10 and there is contact. The Yamaha rider is defending all the way and now Acosta has overtaken Marquez!
Alex Marquez leads from Fabio Quartararo! Marc Marquez is third from Pedro Acosta. Morbidelli has dropped to 15th.
We are racing on Saturday at Barcelona!
The riders are on the warm-up lap.
Five minute board has been given.
Michelin has confirmed that all riders will indeed race with the medium front and soft rear.
A few engineers have already noted that no one will be able to go full blast for the whole sprint because of tyre wear.
Davide Tardozzi says there have been no big changes made to the Ducati of Bagnaia. The team has been working on his mental side, which he says is "one part of this small disaster".
Franco Morbidelli was on the sprint podium last time out at Balaton Park and goes from fourth today on the VR46 Ducati. He'll be one to keep an eye on.
Difficult sprint coming up for Pecco Bagnaia. He's coming from 21st on the gris after his worst qualifying of the year.
He seems to be at a total loss as to what he can do right now to reverse his fortunes.
On Friday, the KTMs did there race running on the soft rear. So, keep an eye on Pedro Acosta coming from fifth.
Everyone has gone to the grid on the medium front, soft rear.
Marc Marquez has won 13 of the 14 sprints run so far this year.
The other, at Silverstone, went to Alex Marquez - the polesitter.
Marc Marquez hasn't lost a race of any kind since the British Grand Prix, but that run looks in serious threat today.
Pitlane has opened for the sighting lap to the grid. Which means we have just 20 minutes till lights out.
Row 1 - Alex Marquez, Quartararo, Marc Marquez
Row 2 - Morbidelli, Acosta, Di Giannantonio
Row 3 - Zarco, Ogura, Bastianini
Row 4 - Marini, Binder, Bezzecchi
Row 5 - Aldeguer, Miller, Fernandez
Row 6 - Oliveira, Mir, Martin
Row 7 - Espargaro, Rins, Bagnaia
Row 8 - Vinales, Savadori, Chantra
Conditions have really gotten hotter for this sprint.
Air temp is almost 30 degrees C, while the track is up at 40 degrees C.
Good afternoon and welcome back to our live coverage of the 2025 MotoGP Catalan Grand Prix.
Up next is the 12-lap sprint, which is due to begin at 2pm BST.