The Rosanero defeated Chievo Verona 3-1 yesterday to keep their top four hopes intact.
"We did not start well, but after some time, we demonstrated the fighting qualities of the side," Hernandez told TMW. "Five more finals remain, but qualification into the Champions League depends on us being united.
"I am an attacker, and it is natural that I like to score goals, but I was unable to on this occasion, but am glad we won.
"Next week, we will go to Cagliari and take on a great side, but I think we are better and stronger than them."