Aleksandar Mitrovic joined Newcastle in 2015 froom RSC Anderlecht.
He scored in Tueday's game two goals and received huge support from the fans. This gives him a lot of motivation and makes him very happy.
The 22-year-old told the 'Shields Gazette': "My heart is full for this club. I couldn't be happier when I score goals for these fans and this club.
"When you hear the whole stadium sing your name, it really is unbelievable. I have heard them sing 'Mitro is on fire' and it really is unbelievable. I have not felt like this for a long time.
"I had really good fans behind me at a really big club like Anderlecht and Partizan Belgrade as well, but here you get 52,000. When you were a boy you dream about things like this," he said.