Rihanna and Chris Brown avoided each other at a charity basketball game yesterday (21.08.14) and they ''didn't speak to each other at all.''

The 'Stay' hitmaker, who ended her on-again, off-again relationship with the troubled R&B star for good last summer, sat courtside with pals, including Cara Delevingne, as he played in the CC Sabthia's and Robinson Cano's Summer Classic Charity Basketball Game at the Barclays Centre in New York City, and was reportedly annoyed about his surprise appearance.

A source told E! News: ''Chris wasn't scheduled to play in the game. ''Rihanna had already promised [to attend] so this forced them to be in the same place at the same time.'' The insider added: ''They didn't speak to each other at all.'' Rihanna also appeared unimpressed that ''Chris was showing off the entire game,'' according to the eyewitness.

But the 26-year-old beauty, who is rumoured to have rekindled her romance with Drake, didn't let the incident get her down, as she later partied with a number of other celebrities and her brother in the city. A source said: ''Rihanna and Ne-Yo came into Club Finale early on Thursday night.

Rihanna's brother came in later. So did Fabulous and Carmelo Anthony, who both joined Rihanna's table. Future came in later in the night with Young Jezzy.'' Chris, 25, also recently got back together with his ex-girlfriend Karrueche Tran.