Okay... so I like this guy and I go to his hockey games and he comes to my basketball games and stuff, we talk a lot too. But I really like him and I'm not sure if he likes me, or he might like one of my friends. I asked my one friend if he knows I like him and he knows but he never said anything about it. All I'm asking is should I talk to him and if I should, how or what should I say?

Yeah why not talk to him , maybe start by telling him what you like about watching his hockey games. Then maybe ask him what he likes about coming to your Basketball games. Never know he may just say to watch you , one can only hope :-)

In your other post you are talking to him.
https://www.askmehelpdesk.com/teens/dont-know-what-do-174269.html

I mean about the fact that I really like him

Have fun with him, and get to know him. He knows you like him, and its kind of soon to be getting in to deep, to fast.

Of course you should talk to him. Ordinary, friendly small talk. Get to know him and give him a chance to get to know you.