He added: "I can't say if Juventus are the best team and deserve the title, because I haven't watched them often enough".
Trailing 2-1 to an Inter Milan side reduced to 10 men after 15 minutes, the footballing gods smiled on Juve when midfielder Miralem Pjanic, already booked, escaped a second caution for a flying bodycheck.
"What Juve have more than anyone else in Italy is the mentality that has been built up over the years", Di Francesco told Sky Sport Italia. "It is also a solid and united club, even in hard times. They are an example for other teams to follow".
"A number of players could leave Juventus at the end of the season, notably club captain Gianluigi Buffon, although the veteran goalkeeper has yet to confirm his retirement". However, Napoli had the momentum in the Serie A race after stunning Juve 1-0 on April 22, which sparked pandemonium back home in Naples as Maurizio Sarri's men closed within a point of the Bianconeri.
The referee stopped the game during the second-half because of the chanting by fans - officially termed "territorial discrimination" - and Sampdoria president Massimo Ferrero came onto the pitch and appealed for it to stop. This despite suffering a late defeat to the Partenopei in their encounter in the league a few weeks back, a loss that put them in danger of losing their title since they had tougher encounters in their schedule compared to their rivals.
"When the next season begins, we all start from zero points and must continue proving we are competitive".
SPAL lost 2-1 at Torino and are level on points in 17th place with Crotone but lead on their head-to-head record.
Cagliari managed a surprise 1-0 victory at Fiorentina to damage its opponent's Europa League hopes and climb out of the bottom three.
Chievo moved up to 14th, two points clear of the relegation zone, after a 2-1 win at Bologna.
Fiorentina remained eighth, three points behind Atalanta and the final Europa League spot.