It's a 1m27.595s for Verstappen now - 0.5s clear of the rest.
"We seem to be losing a lot more on the straights."
A good improvement from the Finn to make it into the top 10.
Expect a lot more improvements though with 15 minutes to go.
Still waiting to see what the rest of the field can do on softs.
Verstappen, Sainz, Perez, Leclerc, Hulkenberg, Alonso, Stroll, Gasly, Albon and Hamilton.
As expected, Verstappen extends his advantage over the rest of the field by a further 0.3s.
He's 0.2s up in sector one - let's see what he can do.
Alonso goes wide at the final braking zone. He looked like he was going to improve on fifth.
Verstappen, Sainz, Leclerc, Perez, Alonso, Stroll, Gasly, Hamilton, Magnussen and Russell.
Verstappen sets a 1m27.969s to go 0.6s ahead of Perez.
Alonso slots into third, one-second off.
Verstappen, Leclerc, Perez, Sainz, Russell, Gasly, Bottas, Ocon, Hamilton and Stroll.
Verstappen gets to work quickly as he sets a 1m28.963s to go quickest, less than a tenth ahead of Leclerc now.
He goes 1.0s clear of Gasly to take to the top of the timesheets.
Perez on the softs; Gasly on the mediums.
Sainz is on top with a 1m30.748s, 0.3s ahead of Leclerc.
Ocon and Hamilton are within four-tenths as they complete the top four.
"Front tyres are vibrating already."
Just Ocon, Stroll, Alonso and Hamilton.
The final practice session of the weekend has started.
Hello everyone and welcome back to the Crash.net live blog for all of the F1 action on Saturday in Miami.
Final practice takes place in just under 25 minutes time, while qualifying is at 9pm.