We've just McLaren radio message that used the phrase "papaya rules". Watch this space.

Charles Leclerc is now in sixth place and is banking the fastest laps of the race on his fresh hard tyres.

In come Carlos Sainz...

Alice Powell
British racing driver on BBC Radio 5 Sports Extra

Ferrari felt it was the right thing to do [to pit Leclerc even thought they would be undercut by Norris], unless they wanted to try and cover off anyone but there was no-one really near them.

Image source, Getty Images

Carlos Sainz takes the lead of this Italian Grand Prix but the Spaniard is yet to make his first pit stop. Ferrari team-mate Charles Leclerc is not happy with his pit wall about reacting so quickly to the McLaren undercut.

Max Verstappen and Sergio Perez are up to second and third but the two Red Bulls have yet to pit.

Harry Benjamin
BBC F1 Commentator

Norris does make the undercut work, Leclerc is just coming into Turn One now as Norris exits it. That has worked out for Norris and McLaren who have gained what should be net second, at the moment they are sixth on the road.

Image source, Reuters

Race leader Oscar Piastri is the next to come in to a busy pit lane and dump his mediums for hards. The Australian comes back out and is ahead of team-mate Lando Norris in fourth place.

Undercut complete. Charles Leclerc makes his stop for the hard compound and the Ferrari driver rejoins the field in time to see Lando Norris go by.

Norris is in sixth, Leclerc is in seventh.

The McLaren pit wall is on the radio to Lando Norris to say the undercut on Charles Leclerc is possible. The Briton comes into the pits, suffers a little wobble and locks-up to slow himself down, and switches onto the hard tyres and he's out in eighth place.

Image source, Reuters

Lando Norris is in third place after losing his lead to team-mate Oscar Piastri on the opening lap. The McLaren is not out of the fight just yet and is 0.634 seconds behind Charles Leclerc's Ferrari's.

Alice Powell
British racing driver on BBC Radio 5 Sports Extra

Lando Norris is slowly creeping his way to the back of Charles Leclerc, three-tenths quicker than the Ferrari driver on the previous lap, so he's edging closer and closer.

1. Oscar Piastri (McLaren)

2. Charles Leclerc (Ferrari)

3. Lando Norris (McLaren)

4. Carlos Sainz (Ferrari)

5. Lewis Hamilton (Mercedes)

Jennie Gow
F1 pit-lane reporter

The [medium] tyres are holding on quite well because I was just watching Piastri and Leclerc, who are one and two in this race, go through fastest laps and are still setting fastest laps.

There was a concern that if you leant on these tyres too soon and work them too hard too quickly that they will fall away, graining on the front and rear tyres, and that's really hard to come back from.

Image source, Reuters

The time is now for George Russell to get his front wing patched up. The Briton comes into the pits, ditches his mediums for hards and comes out in 16th place.

Oscar Piastri meanwhile, is asked what plan is best. "Plan A" is the Aussie's answer. One-stop is in then.

Well, he does now. Smooth move from the Haas of Kevin Magnussen to swipe Daniel Ricciardo's 11th spot.

Meanwhile, George Russell has been passed by the Red Bull of Sergio Perez for seventh place.

Daniel Ricciardo is down in 11th and tries to fight Fernando Alonso for 10th place. But the RB driver locks-up and has to cut the corner. Luckily for the Australian, he doesn't lose track position.

Jennie Gow
F1 pit-lane reporter

Looking at the pit-stop strategies, we are looking at around lap 20 for the drivers that started on the medium tyres to come in and switch over to the harder tyres.

There's still question marks around whether they can do a one-stop in this race.

Hulkenberg has pitted for the hard tyre so it will give everyone a rough idea of what to expect.

Image source, Reuters

The fastest lap of the race goes to Oscar Piastri at the front of the field. The Australian is keeping the Ferrari of Charles Leclerc at bay by 0.889 seconds.

Nico Hulkenberg has been slapped with a 10-second time penalty after his incident with the now retired Yuki Tsunoda.

Over at Red Bull, Max Verstappen is being advised on the team radio to bide his time on those hard tyres.

Oh no. Yuki Tsunoda's day is done after that coming together with the Haas of Nico Hulkenberg.

Image source, Getty Images

Harry Benjamin
BBC F1 Commentator

Verstappen is in sixth and it's important to remember that he is on the hard tyre so can go longer into this race before pitting.

Image source, Reuters

Oscar Piastri, winner of the Hungarian Grand Prix, is being told some information about tyre graining. The McLaren is on the medium rubber and so far, those yellow boots are working well.

Nico Hulkenberg has also bashed his front wing following a lock-up and a collision with the RB of Yuki Tsunoda. The Haas comes into the pits early for some surgery and is running at the back of the field after starting in the top 10.