Sports NBA free agency live updates: Kyrie Irving returning to Mavericks on 3-year deal June 30, 2023June 30, 2023Jeff Zillgitt and Anthony Gharib, USA TODAYComments Off on NBA free agency live updates: Kyrie Irving returning to Mavericks on 3-year deal NBA free agency opens at 6 p.m. ET Friday, beginning one of the most unpredictable times on the sports calendar. Here's everything you need to know.