Barnes, 27, will enter free agency in the hopes of landing a long-term contract, according to his agent. The Kings are open to working out a long-term deal with Barnes, according to ESPN.
Before the trade, Barnes played two-plus seasons with Dallas (2016-19) after signing a $94 million deal following his departure from the Golden State Warriors. The veteran forward averaged 16.4 points per game between the Mavericks and Kings last season.
The Warriors drafted Barnes with the No. 7 overall pick in the 2012 NBA Draft out of North Carolina. He left Golden State in 2016 after the team acquired superstar forward Kevin Durant in free agency.
Barnes won an NBA championship with the Warriors in 2015. He also won a gold medal as part of the U.S. national team in the 2016 Olympics.