Sergey Kovalev: I try to be better with every fight

Sergey Kovalev isn't looking past opponent Nadjib Mohammedi this weekend when he defends his light heavyweight belts at Mandalay Bay on HBO. Here is what Kovalev had to say about this weekend:

"Thank you to WBO. This was my first belt and mean a lot to me. Thank you for this ring."

"Thank you for everybody that came here today. Thank you Kathy Duva my promoter, Egis Klimas my manager and Nadjib Mohammedi. I want to show this Saturday who I am. I would like to still be champion as long time as possible. I did not get all my goals in my career yet. My amateur career I didn't give me a lot of opportunities. I was hurt in amateur career and I had to try not to closed doors. Some of my dreams in the boxing and my goals not finished. For my dreams, my goals this Saturday is the next step in my career."

"Welcome to Mandalay Bay and thanks HBO. I want to give you good show. We will know who is the best. Thank you HBO who built my career. I love boxing and boxing in America and HBO is the best."

"I cannot say who is the best. I try to be better with everyday, fight and build my career as I would like."