The Mavericks’ trade interest in Phoenix’s Deandre Ayton, league sources maintain, has been overstated to this point. While Ayton does have some fans in the organization, there are likewise questions about the former No. 1 overall pick’s ability to live up to the $102-plus million left on Ayton’s contract over the next three seasons. I don’t get any sense at this juncture that Ayton is Dallas’ top trade target.