He said: "It was important for Fernando and us that he has started scoring, so to get two in a derby is massive for him.
"It is positive that he has confidence now. I just want him to keep scoring now.
"I must praise Robbie Keane for doing a good job, he played a part in both goals.
"We are still unbeaten and we are able now to approach games with more confidence.
"In these games you need to play with passion. but also game intelligence, you need to use your brain and your muscles.
"We have confidence, we are playing well and have balance. We attack well and are strong in defence. If you play like this, you can beat anyone."