Though he left Old Trafford in summer 2014, initially on loan, Hernandez continues to follow former club Man United's progress.
“One of my best friends in football is David De Gea," he said. “United was my first European club. We won two titles and almost won the Champions League. We had good moments.
“I want them to have good times always. Same for Real Madrid and Leverkusen.
“I always want my old clubs to do well. But I have only one love in my life in football — my home club Chivas, in Guadalajara. The other clubs are my girlfriends.
“I love them in the moment I love them, then we say goodbye.
“Are the other clubs just jobs? Not jobs. They are like girlfriends. You like them, you love them. You give them your best, they give you the best – but it doesn't depend on them or me. You just separate.
“West Ham? They are my girlfriend right now!"