Isaiah Thomas and the Celtics went toe-to-toe with the King, and lived to tell the tale. As good as the Boston Celtics have been this season, sitting in second place in the Eastern Conference, they've largely struggled against top-flight competition. Heading into Wednesday night, against the other top seeds in each conference — the Golden State Warriors, San Antonio Spurs and Houston Rockets out West, and the Cleveland Cavaliers, Washington Wizards and Toronto Raptors in the East — Brad Stevens' club had compiled a record of 3-12.