How to block ?

I was playing live chess here on chess.com against this person recently and when I went on to winning position he then start to spam me by offering a draw. Obviously, I didn't accept the offer and then he started saying nasty stuff against me... I feel sorry for him as he lose the game without being sport. But what I want to know is how to block him here. I don't want that kind of unsportmanlike player and wanted to get rid on him. How to block?

Home > Profile > Privacy > Block this member (type his username).

Or try this, if it works, it's faster.

http://www.chess.com/home/privacy

Another way is to go to live chess, find your game against him in your archive, then right click his name and select block member.