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Mavs, Heat all square after Game 4 of NBA Finals

Mark Humphrey / AP

Fan Frank Perez attends Game 4 of the NBA Finals basketball game between the Miami Heat and the Dallas Mavericks on June 7.

Mark Ralston / AFP - Getty Images

Tyson Chandler, left, and Dirk Nowitzki, right, of the Dallas Mavericks defend against Dwyane Wade, center, of the Miami Heat during Game 4 of the NBA Finals in Dallas on June 7. The Mavericks won 86-83.

The Dallas Mavericks and Miami Heat are starting over in the NBA finals, their best-of-7 series reduced to a best-of-three after the Mavs won the latest encounter 86-83 on Tuesday night.

Read NBC Sports' match report and see more images in our slideshow.