Cagliari coach Zdenek Zeman rates Napoli as title contenders.
For most, the Scudetto will be decided between Juventus and AS Roma.
"It's going to be a three-sided fight," Zeman told Sportmediaset.
"Napoli can enter the fray between Juventus and Roma.
"Unfortunately my experience with Napoli was brief," the 67-year-old said, remembering his time on the bench of the Azzurri back in 2000.
"Management thought they'd solve their problems by sending me away. But it's all water under the bridge."
