Speaking on American TV show FOX Soccer Daily, Friedel insists the players were fully behind the Portuguese coach.
"I think all the players in the changing room really wanted things to work out for Andre," the veteran goalkeeper said.
"From day one that he came to the club, (he had an) open door policy, very good communication with the players. None of us were happy to see him go.
"We still have to continue to have a very good team spirit, which I know we will."