Joan Lascorz's World Superbike Championship debut came to a disappointing conclusion after his physical condition contributed to the second of two retirements at Phillip Island.

As well as being his first WSBK competition with Kawasaki, the weekend marked Lascorz's first race since his horrific accident during the World Supersport race at Silverstone last season, an accident that left him in hospital for more than a month.

Though he had raised doubts over his condition prior to the weekend, Lascorz proved impressive over a single lap aboard the new ZX-10R, even if he could only manage 13th when it mattered in Superpole.

Two good starts had Lascorz running inside the top ten of both races around the Australian venue, but an error that forced him off the track in race one - and subsequently off the bike on the wet grass - and tyre woes that exacerbated his lack of strength would eventually see him leave Australia point-less.

"I had the pace early in the first race and was quite happy but then I ran off the track, because I had some chatter and had to run straight on at turn nine. I was heading for the wall and I fell off on the grass. In the second race it was impossible to finish because I was in a lot of pain and had no power in my body.

"In race two we had changed the bike and put in a soft rear tyre, and it made it easier to turn. I could make a good pace again, but then it started sliding.

"Overall, I have to look to the next race but I feel we showed that we have some good pace but in races it was difficult today. I am building for the next race at Donington, working to be fully ready."