Gilbert Arenas is officially an unrestricted free agent. NBA teams were notified after 6 p.m. Sunday that Arenas, released by the Orlando Magic on Friday through the league's amnesty clause, has cleared waivers, according to NBA front-office sources. Read more: http://espn.go.com/nba/story/_/id/7...icted-free-agent-clearing-waivers-sources-say