Berbatov played under Sir Alex Ferguson, also known for his touchline outbursts, for four years, and believes things are getting on top of Mourinho.
“For me, those reactions are coming from the tension and stress around the team, and the criticism Mourinho is taking right now,” Berbatov told Betfair.
“Of course that is going to affect the manager. It can’t be easy to get criticised from all sides and from time to time that pressure must show.”
The Bulgarian, who retired in March, believes Rashford, 21, would have been negatively affected by his boss’ actions, however,