Ben Spies, who has missed the last two MotoGP races after falling in qualifying at Phillip Island, was left 'a little beat up' after another heavy tumble in wet Friday practice for the Valencia finale.

The Factory Yamaha rider lost the front under braking for turn one in the soaking wet afternoon session and didn't return to the track. The Texan had been sixth fastest in the dryer morning session.

"I'm a little beat up but that's normal after a crash," he said. "I got a little wide over the white line and hit a puddle and hydroplaned the front, lost it and went down. The bike was starting to feel pretty good and we were getting up to speed.

"It's not the best way to come back, I'm not really happy about it but we'll look forward to tomorrow and make it better. We made a change at the beginning of the second session which was bad, then went back to the settings from the morning and were making progress so we'll continue with that set up in final practice."

"Unfortunately Ben hit his shoulder on the ground. For sure this isn't going to help his physical condition over the weekend as he's pretty sore," added team director Massimo Meregalli. "Hopefully he can manage the pain and keep pushing to deliver as strong results as possible."

Jorge Lorenzo's replacement Katsuyuki Nakasuga began his second MotoGP weekend with 16th and last overall, but was eleventh in the slower afternoon session.

"This is my first time at this track and it was pretty difficult at the beginning to learn the way." He said. "I'm more comfortable now as I can remember the layout. I would prefer a dry track as I think it's very easy to crash here in the wet. On Sunday I believe I can challenge for a good position, this is my target."