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Lewis Hamilton has led 248 laps at Monza, more than any other F1 driver
F1 Correspondent at Monza
Italian Grand Prix
Venue: Monza Dates: 5-7 September Race start: 14:00 BST on Sunday
Coverage: Live commentary of practice and qualifying on BBC Radio 5 Sports Extra and Sports Extra 2 with race on BBC Radio 5 Live; live text updates on BBC Sport website and app
Lewis Hamilton and Charles Leclerc got Ferrari's home race weekend off to a positive start by finishing one-two in first practice at the Italian Grand Prix.
Briton Hamilton, who has a five-place grid penalty for Sunday's race, was 0.169 seconds faster than his team-mate.
Leclerc, who had an incident-packed session, ended it 0.364 seconds clear of Williams driver Carlos Sainz in third place.
Red Bull's Max Verstappen was fourth fastest, ahead of Mercedes' Kimi Antonelli and McLaren's Lando Norris.
Norris comes into the weekend with a 34-point deficit in the championship to team-mate Oscar Piastri, whose car was driven in this first session by McLaren protege Alex Dunne.
The Irishman, who races in Formula 2 this season, ended the session 16th fastest.
McLaren have traced the engine failure in last weekend's Dutch Grand Prix that dented Norris' title hopes to a broken oil line - a McLaren issue rather than a problem with the Mercedes engine.
Leclerc's fastest time was his third attempt to do a lap on the soft tyres after aborting his first two runs.
The second incident led to a scare because Leclerc passed a Sauber just after a red flag was thrown because of gravel on track, despite braking as hard as he could.
He was worried he would receive a penalty, but stewards immediately reviewed the incident and accepted there was nothing he could do.
Verstappen was 0.575secs off Hamilton, while the second Williams of Alex Albon was seventh.
A number of drivers ran wide during the session, and the red flag was as a result of Racing Bulls' Isack Hadjar running off track at the Ascari chicane and spraying the circuit with gravel.
Gravel at the second Lesmo, deposited by Norris, also needed to be cleared.
Other drivers to run wide and kick up gravel included Aston Martin's Fernando Alonso, who was ninth fastest behind George Russell's Mercedes.
Russell ended the session parked on the grass beside the track before the Roggia chicane as a result of a power loss, which left him stuck in seventh gear with the rear wheels locked.
Hadjar completed the top 10.