Valentino Rossi will have a new crew chief for the first time in years in this weekend's race at Mugello, as Jeremy Burgess will miss the Italian race.
Burgess has returned to Australia to be with his wife, who is to undergo a series of medical exams and a possible urgent surgical procedure, according to Ducati. Burgess' role will be filled by Max Bartolini, who normally works as technical manager.
"I'd like to wish good luck to Jeremy, who won't be able to join us this weekend due to very important personal reasons," said Rossi. "We'll miss him very much in the garage, but we look forward to seeing him at the Sachsenring.
"In the meantime, we must try to do well at Mugello. We've ridden there with the GP12, but because our bike is an 800, it responds a little differently to adjustments, and it's also in its first phase of development.
"It will be vital to quickly find the right path for the setup, as it's important that we improve in every session in order to qualify in a good position."