This game is a Roc Nation sponsored event. Rihanna's label. Jay Z's label. And well, let's just say Jay has no love for Chris, so what was he doing there?!
Anyway, she's been promoting this game on her Twitter for weeks because she is actually a celebrity judge. Plus, she is signed to Roc Nation, and her name was promoted on the flyer. So Rihanna was ALWAYS going to be there. No one, and I mean, NO ONE was expecting Chris to pop up there.
But back to the opening question at hand. Chris has been painting Rihanna on his Instagram and randomly popped up at her concert recently ('The Monster' tour with Eminem).
In recent days, he's confessed his love for Karrueche Tran but that doesn't mean anything considering he once declared his love for both women at the same time. It seems he has this knack of showing up at places where SHE is going to be, or this is done deliberately because he has a new album to promote. Of course Karrueche wasn't there but he did take her to the Team USA vs. Dominican Republic basketball game the night before at Madison Square Garden.
As for this game, according to witness accounts, there was zero interaction between them and Rihanna was trying hard to avoid looking at him all night. Lol! Ri's facial expressions always kill me.