“It's obviously difficult for us to contemplate the next three races without Casey, but it's clear that the most important thing at this time is his health,” said Ducati MotoGP project director Livio Suppo. “Since his debut with us in Qatar in 2007, Casey has won 18 times as well as taking countless podium finishes, becoming one of the top riders in the world championship in the process.
“We have already overcome tough times together, like when he had to undergo surgery on his scaphoid towards the end of last season. We are united whether in times of success or in times of difficulty. We are confident that the doctors will help solve the issues that have affected him since early June and that Casey will be able to take part in the last races of the year in peak fitness. Then we can prepare for 2010 in the best way possible.
“A big thank you to Paolo Campinoti who as always has proved to be a great supporter and an ideal partner for Ducati, allowing Mika to ride with the Ducati Marlboro Team for the next three races. Mika is having a really positive debut year in MotoGP and we are delighted that he will be alongside Nicky in the official works team.
“In his place at Brno in the Pramac Team will be Michel Fabrizio, who I am certain will know how to give the right kind of performance on one of his preferred tracks,” Suppo concluded.
Stoner's Brno exit also means that he will not take part in the Brno post-race test, the last opportunity for track time outside of a grand prix weekend before the end of the racing season. The outing is usually used to test ideas for next year's motorcycles.
The 2009 MotoGP World Championship now looks like a direct fight between Fiat Yamaha team-mate Rossi and Jorge Lorenzo, with fourth placed Dani Pedrosa
(Repsol Honda) a massive 72 points from the top.
Rossi starts this weekend's Brno round 25 points clear of Lorenzo.
Stoner crashed out of the lead of last year's Czech Republic Grand Prix, while being pursued by Rossi.