"Rafa has improved me. I've learnt a lot at this club and the manager has given me a lot of confidence. I thank him for that and now I have to give my best for him," said Ngog.
"I just want to score and do my best for the team, and I know I have the qualities to do these things.
"Every player has to improve some things and I know with time and experience I will be better. I have to be patient, work every day in training and do my best when I get a chance."