I'll quit as manager if I ever think I've lost the dressing room - Louis van Gaal

Coach Louis van Gaal has revealed he would quit Man United if he ever feels he'd lost the faith of the Old Trafford squad.

Dutchman Van Gaal reiterates that he has the backing of both his players and the club’s American owners ahead of a big game that will make or break United’s hopes of qualifying for the Champions League.

Rumours that some players are unhappy and that even assistant Ryan Giggs is questioning his future at the club do not match with the signals that Van Gaal is receiving.

Even with questions of poor performance over high-profile players like Radamel Falcao, Juan Mata, Angel di Maria, Ander Herrera and even contract-rebel keeper David De Gea, the United boss is however adamant that the “chemistry” is right.

Coach Van Gaal, who was close to walking out on AZ Alkmaar 7 years ago before player power prompted him to stay, stated that: “When I see this chemistry between myself and my players, then I don’t have any doubts.

“Of course, we have disappointing moments but we can survive and we have confidence to qualify for the Champions League.

“I remember when I went to AZ, a very minor club in Holland. In my first season we were second, in my second season we were third and in my third season we finished 11th.

“I mentioned to my players that I'd go away. But the players then came to my house to ask me to stay, and so did the board. So I said, ‘Okay, I will stay.’ And, in the fourth year, we were champions.”

Van Gaal added: “When I think the chemistry between the players and the manager is not good enough anymore, then I go.

“It is not a question, I can go for myself also. I am in my first season here and I can still win the title, but that will probably go to Chelsea. What we have to do is continue in our process. But we have been in the top four longer than Arsenal this season. That is true.”

United are playing at home to Tottenham on Sunday. They face rival Liverpool at Anfield next Sunday and must also meet Manchester City, Chelsea, Arsenal and Everton on the run-in.

Van Gaal also insists he is oblivious to the financial implications of his troops failing to finish in the top four.