After a rain interrupted Friday, then dry Saturday, a wet track greeted the MotoGP riders for their 20-minute warm-up session on Sunday morning.

Marco Simoncelli, who will start from his first MotoGP pole this afternoon, led most of the session and finished on top thanks to a best lap of 1min 55.292s set on the penultimate of his ten laps. His dry pole time was a 1m 42.413s

Countryman Valentino Rossi got closest to the Gresini Honda rider, flapping just 0.117sec slower, with factory Ducati team-mate Nicky Hayden in third but 0.651sec from Simoncelli.

The Repsol Hondas of Andrea Dovizioso and Casey Stoner, fourth and sixth, were split by the top Yamaha of rookie Cal Crutchlow. Suzuki's Alvaro Bautista was seventh with factory Yamaha rider Ben Spies eighth.

Perhaps wary of his warm-up crash at Le Mans, and the slick conditions, team-mate and defending Catalunya winner Jorge Lorenzo was only 14th fastest after his seven laps, 3.776sec from Simoncelli.

The track could dry in time for this afternoon's race, although the changeable Catalunya weather means the reduced 15 rider field will need to be prepared for further rain showers...

... or could that be 16 riders.

Colin Edwards, who broke his collarbone on Friday and had an operation on Saturday, is rumoured to want to try and keep his perfect record of MotoGP starts since 2003 intact by lining up on the grid for this afternoon's race!

Catalan Grand Prix:

1. Simoncelli
2. Rossi
3. Hayden
4. Dovizioso
5. Crutchlow
6. Stoner
7. Bautista
8. Spies
9. de Puniet
10. Barbera
11. Elias
12. Abraham
13. Capirossi
14. Lorenzo
15. Aoyama