(Undated) -- It's time to start frantically scrolling through social media. The NBA Free Agency period will officially get underway this evening. Teams will be allowed to negotiate terms with players. Deals cannot be officially signed until after midnight on Friday, when the new league year begins. Stars such as Kawhi Leonard and Chris Paul have already opted out of their deals to enter unrestricted free agency. Other big names that could potentially find new homes, include Kyle Lowry and DeMar DeRozan.