It didn't take long for Sean "Diddy" Combs to see a familiar face in prison ... because he ran across a famous basketball player from Brooklyn who he's known for years ... former NBA star Sebastian Telfair . Diddy and Bassy are the most famous inmates doing time at FCI Fort Dix in New Jersey ... and they hung out Saturday in the prison yard ... and we have photos from their chat. We showed you pics of the Bad Boy Records founder laughing and chatting with a bunch of convicts ... and Sebastian's