But, after becoming the first player to win each of Serie A, LaLiga and the Premier League, Ronaldo dismissed all doubt about his future.
"I'm very happy because we've achieved an important goal", said Allegri, who becomes the first coach to win five consecutive Serie A titles. "It has been a great season for this Juventus, we also won the Italian Supercup", said the Portuguese forward, who has scored 19 league goals. "You can't win all the time".
After the final whistle, Juventus players celebrated by forming a circle and jumping up and down clapping their hands. Then they drank champagne and some players invited their children out to take part in the festivities.
Carlo Ancelotti's Napoli are second, 20 points behind Juventus, and with six games left to play, can not bridge the gap at this late stage.
Juventus claim to have lifted the trophy 37 times, refusing to recognise the decision to strip them of the 2004-05 and 2005-06 titles following the so-called Calciopoli match-fixing scandal.
"Juventus need to work in the management of the squad", the former defender told Italian TV station * a rel="nofollow" href="http://www.raisport.rai.it/dl/raiSport/ricerca.html?q=tardelli&site=default_collection&getfields=*&filter=0&refresh_ce" target="_blank" *Rai Sport.
The day was a double celebration as Juventus' women's team won their second straight league title since being founded in 2017.
Last weekend, they had the opportunity to wrap up the title but suffered a shock loss at SPAL and it appeared the were ready to blow a second opportunity to clinch the title as they fell behind early on at the Allianz Stadium. Since Sandro's Serie A debut in 2015, the left back has been directly involved in 23 goals (10 goals and 13 assists) - more than any other defender in the Italian league.
Still, there were more moments of concern for Juventus as Chiesa hit the crossbar two minutes before the break.
However, it still had the air of the consolation prize after their failure to progress in the Champions League which they had high hopes of winning following the signing of Ronaldo in July. We felt that we could do more and we wanted to win, but only one side can win the Champions League.