A fan in the crowd is holding a sign which says she'll swap her Dad for a picture with Lando Norris. Hopefully the McLaren driver sees this and reassures her she doesn't need to resort to such drastic measures for a quick photo.

Session is over...

Jolyon Palmer
Former Renault driver on BBC Radio 5 Live

There's not going to be improvements coming in.

I don't think anyone is going to get close to Verstappen though.

The clock has turned red with two minutes to go and Alpine's Esteban Ocon and Pierre Gasly are both running in the top five drivers.

However, Charles Leclerc has been quiet so far this session but here comes the Ferrari man now, ready to push Gasly down the order as he places his Scuderia second behind Max Verstappen.

"I'm really struggling to drive this at the moment. The balance is all over the place."

Massive lock-up for Lando Norris in the McLaren after Nico Hulkenberg's skirmish in the Haas.

Yuki Tsunoda is down in 20th place and fumes to his Alpha Tauri crew about his car's understeer. He may be the smallest driver on the grid but Tsunoda doesn't half pack a punch in a radio rant.

"I clipped the exit kerb quite badly, check the floor there at the front.'

Softs as far as the eye can see across the timesheets now. Surprise, surprise, Max Verstappen improves again and finds even more speed in the RB19. The time to beat now is a 1:27.595.

Russell: "I cannot get through Turn 2. So much hopping."

Engineer: "We'll have a look at Turn 2 and get back to you."

Miami's debut on the Formula 1 calendar wasn't a happy day out for Lando Norris. The McLaren driver was involved in a nasty tangle with Pierre Gasly on lap 41 which caused both drivers to retire from the race.

Meanwhile, George Russell is back on the radio, this time he's informing his Mercedes pit wall about "hopping".

Jolyon Palmer
Former Renault driver on BBC Radio 5 Live

It looks like the tyres are hanging on - that's why with 15 minutes to go we still have cars out there. The tyres are giving them the luxury of getting more laps and more knowledge of the circuit.

Beach ball race helmet Lando Norris is propping up the leaderboard but the McLaren man manages to move up ever so slightly following his previous struggles and into 18th place.

Image source, Lando Norris

Christian Hewgill
Pitlane reporter

The wind is really starting to become a factor for the drivers, and I wonder if that was a factor to what we saw with Lando there.

Alpine are heading out for a spot of red running in the south Florida sunshine. The start of the season hasn't been a bed of roses for the French team but Pierre Gasly is on a decent lap now and puts his car in the top five with a 1:28.487. Gasly is quicker than his best mate Charles Leclerc and just 0.294 short of Sergio Perez in third.

"Losing a lot of time on the straights."

Lewis Hamilton is putting in a clean lap as we edge towards 20 minutes left of the session. No lock-ups to be found on this outing and the seven-time world champion jumps from 10th position up to fifth spot on some red rubber.

"Lots of vibrations on the steering rack," is the message from George Russell as the Mercedes driver heads back out on track. The Briton struggled with his steering on Friday which kept him out of a big chunk of first practice. But then he did top the session with a late dart on the softs in the end.

Jolyon Palmer
Former Renault driver on BBC Radio 5 Live

Everyone has a new set of soft tyres to go on to. It just shows the softs are hanging on pretty well, the degradation is pretty low and the track grip is coming up.

1. Max Verstappen (Red Bull) - 1:27.669

2. Carlos Sainz (Ferrari)

3. Sergio Perez (Red Bull)

4. Charles Leclerc (Ferrari)

5. Nico Hulkenberg (Haas)

Piastri: "That was quite late by the Red Bull."

Engineer: "Yeah we saw that."