The Boston Celtics beat the host Miami Heat 94-90 to move within one win of the National Basketball Finals.
The Celtics can advance to the championship round with a home victory in Game 6 on June 7. Should the Heat win that game, a decider will be played in Miami two days later.
The series winner will face the Oklahoma City Thunder or the San Antonio Spurs in the NBA Finals. That contest resumes tomorrow in Oklahoma City, with the home team leading 3-2 in games.