It was an instantly iconic moment, the most memorable highlight of Irving’s scorching second half in the Mavs’ series-clinching 114-101 win Friday night at the American Airlines Center. “I was on the floor looking, kind of squinting and seeing if it went in,” Irving said after improving his record to 13-0 when his team can clinch a series during his career, the best record in closeout games in NBA history. “Just seeing my teammates’ reactions, that was the best part of it. We knew that was kind of like the dagger in the series.”