Hernandez scored the equaliser in last Sunday's incredible 3-3 draw with Chelsea and the Mexican believes the point could have a bearing on the title.
"The goals give me a lot of confidence and a lot of motivation to keep working and improving," he said.
"But my focus is on the team. I don't care if I score or not.
"My goal at Chelsea was very important. We had been losing 3-0, so it was a great comeback. That point could change the title."