The Bhoys have won the league title in the Scottish top flight for the past four years and will be favourites to clinch it again in the 2015-16 campaign.
McCann has backed the Hoops to make it five in a row, but he has underlined the importance of keeping star defender Virgil van Dijk in the team.
“Celtic will be strong favourites to retain the title and I expect them to do so,” the 40-year-old former Rangers man told Sky Sports.“But it all remains to be seen if guys like Virgil van Dijk hang around. He is very, very important to Celtic and what they do.
“At times when he was missing from the side there was a definite hole within the Celtic defence. If they keep him I would expect Celtic to be strong again.
“I think if they lost a player like him it could impact and allow the likes of Aberdeen, Hearts or Dundee United to get closer to Celtic.”
Former Celtic striker Andy Walker believes that Ronny Deila’s side will win the Premiership title with ease.
“I still think Celtic will win the title by some distance,” the 50-year-old told Sky Sports. “When you look at what happened last season with Aberdeen getting 75 points - it’s a tall order to replicate that.”
Easy-peasy for Celtic?
It is hard not to agree with Walker and McCann: Celtic will win the Premiership title this season.
The Hoops have the best squad and the best players in Scotland, and there is absolutely no chance that the likes of Aberdeen, Hearts and Dundee United will be able to maintain their challenge throughout the season.
It is Celtic’s title to lose, and it will be a huge surprise if they fail to make it five in a row.