Sancho remains out of the first team picture at Old Trafford after falling out with his manager.
Earlier this month, Sancho was not included in the Manchester United squad for the Premier League trip to Arsenal, with Ten Hag citing a lack of application in training for his exclusion.
Sancho hit back almost immediately, as he took to social media to issue a quick rebuttal to the claims made by his manager.
The 23-year-old is now training alone until a resolution is found.
Speaking to Betfair, Berbatov said: "Sometimes a player, and I hope this isn't the case for Sancho, who takes this long to resolve conflict has overestimated his own value to the club. When it's Ronaldo, it's different as he's achieved everything. I was at the club when Wayne Rooney had a fallout with the manager, and they sorted things out."
"I think Sancho is overestimating his importance. He's not won that many trophies with them. It's a different situation. United can easily decide to get rid of Sancho over this. As talented as he is, and we all saw it at Dortmund, he has yet to show any of this at United. We can only speculate why that is, maybe it's his surroundings or the people who he's around, or maybe it's because he doesn't agree with the manager. If this drags on anymore, I can't see it getting better and it's best to part ways."
Sancho joined from Borussia Dortmund for £73m in the summer of 2021 but has scored just 12 goals in 82 appearances.