Here's a quick list of the best unrestricted free agents who teams will be pursuing over coming hours, days and weeks: Kevin Durant, SF, Golden State Warriors Kawhi Leonard, SF, Toronto Raptors Kyrie Irving, PG, Boston Celtics Kemba Walker, PG, Charlotte Hornets Al Horford, PF, Boston Celtics Jimmy Butler, SF, Philadelphia 76ers Keep it right here for the latest free agent rumors, reports, contract details and more in our live blog below! p.m. Here's the next domino in the Warriors-Nets sign-and-trade involving D'Angelo Russell.