Tyler Herro will return from injury for Game 7 of the Eastern Conference Finals as his Miami Heat host the Boston Celtics.

Herro, who won this season's Sixth Man of the Year, has missed Game 4, Game 5 and Game 6 with a groin injury, but was given a chance to prove his fitness with an NBA Finals berth on the line.

The 22-year-old guard averaged 20 points, five rebounds and four assists per game in the regular season, shooting a career-best 39.9 per cent from long range on a career-high 6.7 attempts per game.

He has scored in double-figures in eight of his nine playoff games this season, and the Heat won two of the three games he was present for in this series against the Celtics.

His return will likely see Caleb Martin's role reduced to zero, while one of Victor Oladipo or Gabe Vincent should also see reduced minutes.