Nico Rosberg was on the blower (radio) during that lap and complained of warning lights popping up on his monitor.

"We're not seeing high temperatures on our normal sensors," comes the response.

Some early times in - Lewis Hamilton goes top with a 1:25.1.

Nico Rosberg goes two and a half tenths slower and Valtteri Bottas and Jenson Button are a second further back.

And Max Verstappen is out with a halo device attached. That's double the halo fun in Monza.

Mark Rogers: @JensonButton should get a signature on a @williamsf1team contract asap, and don't let @McLarenF1 play games again.

Kayleigh: Jenson to 'replace' Massa at Williams. Vandoorne into JB's seat at McLaren

Jenson Button will be trying out the halo safety device for the first time this morning.

He's out on track.

That's a deuce of Ferraris out immediately to give the Monza fans what they want.

First practice is under way - Monza is alive with the sound of engine roar.

BBC Radio 5 live sports extra

Tune that dial into BBC Radio 5 live sports extra immediately to listen to live coverage of first practice - you can also listen on this page by clicking the audio button at the top.

Andrew Benson
Chief F1 writer at Monza

Image source, AP

Kevin Magnussen was typically down to earth and matter of fact about the fact that he will be getting back in his car here this weekend just five days after his monumental accident at Eau Rouge/Raidillon.

“I have just relaxed,” the Renault driver said. “Nothing was broken, I wasn't injured, so just a bit sore in my body and I didn’t need to do anything special.

"No special treatments or anything. Just a couple of days at home and ready for the next race.”

Why did he crash? “I spun at the top of Eau Rouge. I hit a bump and lost the rear, but then the car caught grip again and I went right into the wall."

Some good news emanating from the Renault garage this week.

Kevin Magnussen has gone from this in Spa...

Image source, AFP

To this...

To Monza...

Magnussen had a horrific crash on the exit of the 180mph Eau Rouge/Raidillon and there were concerns over his ankle.

But here he is.

Andrew Benson
Chief F1 writer at Monza

Image source, Getty Images

Lewis Hamilton said on Thursday that it “will be nice” to go into a normal race weekend - but clearly the engine problems that hit him in China and Russia earlier this year, and led to the grid penalty he suffered last weekend in Belgium, are still preying on his mind.

He would be glad, he said, not to have the “pressure of ‘what if’ - only to add: “The ‘what-if’ is still there. But at least if one engine goes, I know I’ve got another two so I am in a better position these last eight races. I’m going to enjoy it. The penalties are done.

"The free weekend kind of thing for the opponent is past - I mean free from battle. Hopefully now I'll get to fight, and it's a race from here."

Image source, Getty Images

It was with a tear that Felipe Massa announced his retirement and it's not surprising, considering the depth of memories he has in F1.

What have been your most memorable Massa moments over the past 15 years?

And, when he departs, who should replace him at Williams?

Use #bbcf1 to get involved.

Image source, Getty Images

Fifteen years, 244 race weekends, 11 grand prix victories, two of F1's greatest teams and, at one point, one hand on the drivers' championship.

Felipe Massa announced this week he will retire from F1 and the sport has been reflecting on a sterling career.

Our chief F1 writer Andrew Benson is among those - read it here.

Andrew Benson
Chief F1 writer at Monza

Image source, gett

It’s a lovely, early autumn day, the sunlight is warm and golden, the park under the ancient trees cool for now - but they’ll provide respite from the heat later on.

As ever, the approach to the paddock is a glorious melee of fans and marshals blowing whistles and waving their arms in directions that only vaguely represent where you’re supposed to take your car, and yet somehow everything falls into place.

Those fans will be there all day, and long into the evening, waiting for a glimpse, or even a brief encounter, with their heroes, bursting with a passion that is not seen anywhere else.

In the meantime, the drivers will spend three hours honing their cars on the fastest track on the calendar, testing their limits through those evocative corners - Variante de Rettifilio, Curva Grande, Lesmo, Ascari, Parabolica. What a wonderful place this is.

BBC Radio 5 Live

And, however far you've travelled today, we thank you for joining us. We know that some of you have had quite the journey - but you're here now and that's all that matters.

So, what can you find where this weekend?

Today

First practice 09:00 BST - 10:30 BST - coverage on BBC Radio 5 live sports extra and online from 08:55 BST

Second practice 13:00BST - 14:30 BST - coverage on BBC Radio 5 live sports extra and online from 12:55 BST

Saturday

Final practice 10:00 BST - coverage on BBC Radio 5 live sports extra and online from 09:55 BST

Qualifying 13:00 bST - coverage on BBC Radio 5 live sports extra and online from 12:55 BST

Sunday

Race - 13:00 BST - coverage on BBC Radio 5 live and online from 13:0 BST

Image source, AP

It may have been football's deadline day on Wednesday, but the biggest move of the week has been hoiking the Formula 1 circus 500 miles across Europe from Spa to Monza.

Among the routes you could take is via Belgium, Germany, France, Switzerland and Italy - that's the heavy carrying of cars, motor homes, kit, staff and drivers' ego, all in four days.

Crikey!