Klay Thompson to join Mavericks, Warriors get 2 second-round picks in sign-and-trade: Sources

Golden State Warriors guard Klay Thompson (11) sits on the bench during action against the Sacramento Kings in the fourth quarter during a play-in game on Apr. 16 at the Golden 1 Center in Sacramento. Thompson agreed to a three-year deal with the Dallas Mavericks on Monday worth $50 million. (Cary Edmondson/USA TODAY)

Klay Thompson will join the Dallas Mavericks, league sources said Monday, a move that ends his 13-year run as a core member of the Golden State Warriors dynasty.