Honda’s Marco Simoncelli was fastest in practice for the Assen MotoGP as an oil spill cancelled the afternoon session.
The Italian lapped the Dutch circuit in a time of one minute 49.036 seconds to put his Honda on top in the rain.
Nine-time world champion Valentino Rossi was second on his new improved Ducati, with championship leader Casey Stoner in third.
British rider Cal Crutchlow impressively took sixth place, a week after surgery on his broken collarbone. BBC Sport
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Championship leader Casey Stoner was fastest for a long while, before Simoncelli and Rossi moved back into first and second and edged the Australian down to third, just ahead of his Honda team-mate Andrea Dovizioso.
Jorge Lorenzo was top Yamaha in fifth place - the factory bikes wearing a special red and white colour scheme this weekend to celebrate the marque’s 50th year in grand prix racing.
Karel Abraham (Cardion AB Ducati), Colin Edwards (Tech 3), Nicky Hayden (Ducati) and Ben Spies (Yamaha) completed the top 10.
Hiroshi Aoyama was 12th in his first session on the factory Honda usually earmarked for Dani Pedrosa, while Aoyama’s Gresini stand-in Kousuke Akiyoshi was 16th. Yahoo! Eurosport UK
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