Damon Hill 1996 world champion on BBC Radio 5 Live in Austin
Can Ferrari make this a one stop? I think that's going to be difficult but we shall see it unfold. The key to all of this is seeing how far Antonelli can go on these medium tyres. So far nearly up to 20 laps, looking very strong. Tactically he has to be looking at the one stop after Verstappen's pit stop.
Charles Leclerc is in fifth place after his opening stop and now the Ferrari man is the fastest car on track on the medium compound. team-mate Lewis Hamilton is on sixth place, with Lando Norris on his tail after passing Liam Lawson.
Oliver Bearman has just been told he has been handed a 10-second time penalty for causing a collision with thte Alpine of Pierre Gasly. The Briton is not please with the information.
George Russell has been dispatched with ease by Max Verstappen, and now the Dutchman is 16 seconds behind race leader Kimi Antonelli.
Pierre Gasly doesn't put up a fight when Lando Norris comes knocking on the door for his P8 spot. The Frenchman drops to ninth, but he hasn't pitted yet.
Verstappen closing in Russellpublished at 20:34 GMT
20:34 GMT
Lap 18/56
Max Verstappen is rapid on his fresh soft rubber and now he's chasing down George Russell. The Mercedes driver is yet to pit and serve his five-second time penalty, and the Red Bull is inching closer and closer.
At the moment, Antonelli looks in complete control of this race. All the frontrunners could be on two stops and Antonelli on a one stop. That would be a statement of intent.
Lando Norris and team-mate Oscar Piastri have been placed on the hard compound by McLaren, and the world champion comes out in ninth place, ahead of the Australian, who needs to get past Esteban Ocon.
Problem is, Max Verstappen has to do a two stop now which is not what we were expecting at all. It was thought to be a one stop race. That's really put the cat amongst the pigeons. Does this mean everyone else has to do a two stop now?
With these flurry of pit stops. Kimi Antonelli has stayed out. The championship leader has an 11-second lead over Red Bull's Isack Hadjar, as Max Verstappen continues his charge back up the order.
World champion Lando Norris - get yourself into the pits.
Can Lewis Hamilton get in and out ahead of Liam Lawson? Not quite. The seven-time world champion is behind the Racing Bulls driver but he's soon able to clear him on his fresh medium tyres.
Oscar Piastri is next to come, just as Max Verstappen gets through on the McLaren and is up to fifth.
Max Verstappen heads in to the pits early and takes on more soft tyres for this next stint. The Dutchman comes out and is also already up on Racing Bulls' Liam Lawson and is now P8.
Ferrari react also and tell Lewis Hamilton to come in for a compound change.
Damon Hill 1996 world champion on BBC Radio 5 Live in Austin
I've been watching the gap between Kimi Antonelli and Max Verstappen. Antonelli is comfortable where he is and doing slightly faster lap times than Verstappen. I think we're in tyre management mode now
Fernando Alonso might be limping slightly but that doesn't mean he can't make waves up at Turn One. he gets Alex Albon early in the lap to reclaim P15 from the Williams man. Albon's team-mate Carlos Sainz is down in 18th place, Lance Stroll has made his way to P20 after his pit-lane start.