Luca Scassa's absence from the World Superbike Championship continues after he was disallowed from competing with Pedercini Kawasaki at Laguna Seca.

The Italian has not raced in the series since Imola when he sustained injuries in an accident during testing for a prospective MotoGP substitute ride, but had hoped to be fit for Portimao and Laguna Seca.

Having been allowed to start at Portimao before opting to withdraw to give himself additional rehabilitation, Scassa has been prevented from even taking part in FP1 at Laguna Seca, much to the frustration of the Italian.

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"The doctors made me do all the necessary physical tests and were impressed by the movements that I made and the strength that I have after just 2 months after the accident," he wrote on Facebook.

"Despite this decided not to let me even try to go on the track, claiming that this track is too dangerous for me. I totally disagree with them but I can't do anything. Frustrated and disappointed."

As such, Pedercini Kawasaki - which has run Romain Lanusse and Riccardo Russo in Scassa's place previously - will compete with just Alessandro Andreozzi this weekend.

In addition to one less Pedercini Kawasaki, MAHI Racing is also missing from action this weekend having decided not to make the trip to the United States for the Superbike-only weeked with rider Fabien Foret.