MotoGP World Championship leader Jorge Lorenzo picked up where he'd left off before the summer break by leading a shortened Friday practice at Brno in the Czech Republic.

A light rain shower brought useable track time to an end after 45 minutes, the drizzle falling just moments after Lorenzo had extended his advantage at the top of the timesheets to 0.541sec over Honda's Dani Pedrosa.

Lorenzo starts this weekend 72 points ahead of Pedrosa in the championship battle. Lorenzo's Fiat Yamaha team-mate Valentino Rossi was third in practice.

"I am happy to be riding here in Brno again," said Lorenzo, who crashed while fighting Rossi for the lead in last year's race. "It's always difficult to go back to work after the holidays and this track is so different to Laguna, so wide and much longer; it took me a few more laps than usual to get going!

"Once I found my rhythm this was a good session and I felt happy on my bike, with a good setting to start from. We tried both rear tyres and we need more time to choose, because unfortunately it rained a bit at the end and we had to stop early.

"We'll have to wait and see how the track is tomorrow but we hope for it to be dry so we can continue with what we started on today," he concluded.

"We had 45 minutes in the dry and we went very well, Jorge had a good feeling with the bike," confirmed team manager Wilco Zeelenberg. "We have some doubts about the rear tyre and whether to use the hard or the soft - we made some adjustments and we needed to check the setting again but then it rained so we didn't have the chance.

"But overall things are good and Jorge is feeling happy on the bike. We just need a bit more track time tomorrow to decide which rear tyre to use."