Postpublished at 13:18 British Summer Time 2 September 2016
Sebastian Vettel has wedged himself between the two Mercedes to take P2 - he's gone a tenth quicker than Nico Rosberg, although he is on a quicker tyre than his compatriot.
Hamilton fastest in second practice
Verstappen warned about driving
Monza seals Italian GP future
Mercedes top in first practice, Button and Verstappen test halo device
Chris Osborne
Sebastian Vettel has wedged himself between the two Mercedes to take P2 - he's gone a tenth quicker than Nico Rosberg, although he is on a quicker tyre than his compatriot.
How about this Massa memory?
Wnning the Brazilian GP, only his second career victory, In his home country, with one of the greatest teams of all time.
It all got a bit too much for little Felipe.
#bbcf1
Sam Marsh: Formula 1 will not be the same without #massa. He has provided the fans with years of quality racing.
The Real Benn Pirrie: The fact that when @MassaFelipe19 started he kept crashing and folks said he was too wild. How times change, huh?
Which constructor has won the most Italian GPs?
If you said Ferrari, you'd be right.
The Italian stallions have 18 victories in total on Azzurri soil - the most recent coming in 2012 through Fernando Alonso and the first in 1951 from Alberto Ascari.
Look at his face when he won. Just look at his face!
Nico Rosberg goes 0.3secs quicker than Sebastian Vettel - the Mercedes is on medium tyres as opposed to Vettel's soft.
Kimi Raikkonen, in third, was on mediums too.
Here comes Lewis Hamilton on soft tyres and that gibes him the edge to go top and 0.7secs quicker than Rosberg.
A Haas, which looks like Romain Grosjean, overshoots and heads off the track. He then has to slalom through some barriers, like he's queuing for a theme park ride, to get back on course.
Andrew Benson
Chief F1 writer at Monza
Some interesting whispers are emerging from inside Ferrari. It has not gone unnoticed that Kimi Raikkonen has had a resurgence in form in recent races. But there are questions within Ferrari as to what has caused this.
Has Raikkonen improved? Or is Sebastian Vettel a little off form at the moment?
It’s interesting because it’s the first sign of any kind of internal tension between Vettel and Ferrari.
Nevertheless, Ferrari have offered Vettel, whose current deal runs to the end of next year, a new two-year contract and negotiations are ongoing on that front. The smart money would be on them coming to an agreement and Vettel signing it sooner or later.
Kimi Raikkonen is looking like a Finn reborn recently.
He goes quickest early doors with a 1:25.153.
And moments later Sebastian Vettel tops his by 0.7secs.
That's got the scarlet Ferrari flags in the crowd a-fluttering.
Force India news for you: Reserve Alfonso Celis, after a respectable first practice run out, has made way for Nico Hulkenberg this afternoon.
Aaaaaaaand action.
Second practice is very much a go go.
What we do know is that Maxstappen (it's quicker to type that way) has been taken into the head master's office for a little chatette today.
Race director Charlie Whiting has spoken to the Dutchman, Red Bull boss Christian Horner told Sky Sports.
"It was a bit of warning if you like. Like any 18-year-old the criticism (from other drivers) seems to be going in one ear and out the other. He really doesn't care," said Horner.
"We're all here talking about it and it's that spirit he's got that is bringing fans trackside."
BBC Radio 5 live sports extra
You can listen to coverage of second practice by slapping your radio into BBC Radio 5 live sports extra mode - or by using the audio button at the top of this page.
That's the question Allan McNish has tackled in his BBC Sport column this week.
There's been plenty of chat about whether Max Verstappen got a bit bolshy in his tactics, fending off Kimi Raikkonen at Spa last week.
"For what it's worth, my view is that what Verstappen did on Kemmel was not acceptable and also unnecessary to move so late," says former F1 driver and BBC Radio 5 live analyst McNish.
Niki Lauda's horrific crash at the 1976 German Grand Prix would have seen of many a man's career.
But it was here in Monza, just six weeks after he was read his last rites, that the Austrian returned to the cockpit that had almost killed him.
"I nearly, I don't think I can say, but, you know... in my pants because I had such a panic," said Lauda, speaking to BBC Radio 5 live as part of its Italian Grand Prix preview show.
Also, I love that the Prime Minister is going to be at the announcement about the future of the Italian Grand Prix.
If Teresa May doesn't reveal the opening of Silverstone's new hospitality lounge by flying a hot air balloon across Northamptonshire then I will lose faith in this nation of ours.
Off the back of that news from Andrew, there's reports that bosses at Imola, a track which hosted the Italian GP in 1980, is set to kick up a fuss about Monza's continuation as the home of the race.
Andrew Benson
Chief F1 writer at Monza
There is a lot of chat about 2017 in the paddock today, as people gossip about which driver will end up where, with Jenson Button’s future at the centre of discussions. But one thing that we can say with certainty is that the future of the Italian Grand Prix is secure.
Monza has signed a new three-year deal with Formula 1, which will be formally announced at a news conference with the Italian prime minister Matteo Renzi at 15:00 local time - during second practice.
#bbcf1
We've been asking for your memories of Felipe Massa's career, following his retirement announcement.
Wurstthefirst: Massa will b sorely missed in F1 a true gent on and off track
Pithy Comment: Starting the #massaonthepodium campaign at #monza. Fantastic way to say thank you. Go on #FIA you know you want to
Racing Insider: @MassaFelipe19's greatest moment will always be his heroic, inspirational appearance on the podium after the 2008 Brazilian GP. Wow
Matt Laming: When he was world champion..... For a few seconds
Nico Rosberg was the quickest man in Italy this morning, edging out his Mercedes team-mate Lewis Hamilton by 0.203secs.
Missed it?