DALLAS — Cooper Flagg followed Anthony Davis’ bank shot with a jumper of his own, then blocked a jump hook from Anthony Wiggins at the other end before scoring a contested layup on an assist from Davis.Just like that, the rookie No. 1 overall pick and the 10-time All-Star combined to seal Dallas’ 118-108 victory over the Miami Heat on Wednesday night, extending the first winning streak of the season for the Mavericks to three games.Flagg knew his NBA career would start without help on the court from star guard Kyrie Irving, who is recovering from an ACL tear last March. The 18-year-old former Duke standout also had to persevere for a month without Davis, who was sidelined with a left calf strain.A loss in Davis’ return at the Los Angeles Lakers last week dropped the Mavericks to 5-15, but they won a night later without him before consecutive victories over Denver and the Heat, two teams that should be playoff contenders.“When you talk about the stars, he didn’t have the two stars on the floor, so he had to endure the best wing defender, and I thought he did an incredible job,” coach Jason Kidd said. “When you look at the clutch situations, he responded in a positive way. For an 18-year-old to be leaned on without AD or Kai out there, I thought he responded in a positive way.”While Davis was out, Flagg found himself in the company of LeBron James a couple of times.In a 118-115 victory over New Orleans last month, Flagg had 29 points, seven rebounds and five assists. James is the only other player with at least 25 points, five rebounds and five assists in a game as an 18-year-old.With Davis resting on the second night of a back-to-back in a 114-110 victory at the Los Angeles Clippers on Saturday, Flagg became the youngest player in NBA history to score 35 points. He …
