Casey Stoner may have been fast in the free practice session at Laguna Seca on Friday, but the Australian Ducati rider is having a fitness problem after symptoms of his illness appeared much earlier than at previous MotoGP races.
Casey Stoner has been through medical treatment for stomach cramps and sickness after each of the last two MotoGP races in which he finished on third place. Stoner was still feeling nauseous after just an hour of speeding at Laguna Seca despite the medication.
Nevertheless, the Nicky Hayden's team mate was fastest for much of the US MotoGP practice session, before being overcome by Yamaha riders and title ultimate rivals Valentino Rossi and Jorge Lorenzo. Stoner finished the practice session 0.189 seconds behind the Doctor and only 0.077 seconds behind the Spaniard.