During the fourth quarter of the Mavericks vs Charlotte game, The Athletic's Shams Charania broke the news that Dallas' Harrison Barnes is being traded to Sacramento Kings. ESPN's Adrian Wojnarowski then tweeted, "The Kings are trading Justin Jackson and Zach Randolph to the Mavericks for Harrison Barnes, league sources tell ESPN." 

According to ESPN, the Kings are making a long-term play for Barnes, who has a player option on his $25 million deal for the 2019-20 season. 

Source: ESPN