McLaren's Lewis Hamilton was fastest in opening practice for this weekend's F1 2011 Italian Grand Prix.

Hamilton went quickest around 50 minutes in, and he then improved right near the end, posting a 1 minute 23.865 second lap, making him the only driver to break the 1m 24s barrier. His time left him 0.921 seconds up on Jenson Button in the sister MP4-26.

Defending F1 world champion Sebastian Vettel was third for Red Bull Racing, albeit around four tenths further back and 1.3 seconds off the ultimate pace. Mark Webber took fourth, while Force India's Adrian Sutil completed the top five.

Further back Vitaly Petrov was sixth in his Lotus Renault, having posted a 1m 26.625s effort, followed by the Ferraris of Fernando Alonso and Felipe Massa, neither giving the tifosi much to shout about - although granted FP1 doesn't mean much and the weekend is yet young.

Sauber's Sergio Perez and Toro Rosso's Jaime Alguersuari rounded out the top ten, the latter only three thousandths up on Michael Schumacher, who went wide at Parabolica and across the gravel trap 60 minutes in.

Nico Hulkenberg and Rubens Barrichello took 12th and 13th for Force India and Williams respectively - Hulkenberg using Paul di Resta's car for FP1. Kamui Kobayashi, Pastor Maldonado, Bruno Senna and Sebastien Buemi held positions 14 through to 17, with Nico Rosberg 18th.

At the back as usual, Heikki Kovalainen headed the 'newer' teams in his Team Lotus - sixth tenths up on Karun Chandhok, even though the Finn was hit by mechanical problems and only managed 10 laps. The HRT's of Daniel Ricciardo and Vitanonio Liuzzi and the Virgin's of Timo Glock and Jerome d'Ambrosio propped up the field, Glock only doing 12 laps, while d'Ambrosio stopped out on track with 15 minutes remaining.

To see the full times from F1 2011 Italian Grand Prix - Free Practice 1 at Monza: CLICK HERE