"I have a desire to train, to feel fatigued," the Milram sprinter told La Gazzetta dello Sport.
Petacchi has not raced since he fractured a bone in his right hand during the Vuelta a España in September after punching a team bus in frustration over his sprinting failures.
The Tour of Spain was his comeback race from a knee fracture he suffered in May at the Giro D'Italia, which cost him a chance to race in the Tour de France.
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The A-Train said that he wanted to not only compete in all three grand Tours next season, but win stages at the Giro, Tour, and the Vuelta.
"In 2003 I won stages in all three tours," said the 32-year-old Petacchi. "I am able to repeat this and the team can sustain this force."
Petacchi is set to race the Tour of Qatar in January, but is already focused on the classics season, specifically reclaiming the Milan-Sanremo title he won in 2005, but lost to compatriot Filippo Pozzato last season.
"I can not wait to re-win [Milano-Sanremo]. It is a unique race. [The Tour of] Flanders does not give me the same emotions, while I think I can do well in Gent-Wevelgem. Roubaix? Maybe I can respond to the cobblestones, but it is another unknown."
Petacchi said that Milram's sprint train would start training together in Tuscany in mid-December.
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