Mere minutes after the final buzzer sounded, and with the score still showing on the big screen, an emotion-stirring graphic went up for all to see: side-by-side photos of Stephen Curry dribbling left-handed and Klay Thompson in nearly the same pose but now wearing a blue Mavericks jersey. The Golden State Warriors had just wrapped up their season-opening homestand and the game with Dallas was the next date at Chase Center — with all fans in attendance to receive a captain's hat honoring Thompson's tradition of boating to games as "Captain Klay." On Tuesday night, Thompson returns to face the Warriors for the first time since joining the Mavericks in July on a three-year, $50 million contract following 11 seasons and four championships with Golden State.