Boston Celtics' Kristaps Porzingis confirms return for Game 1 of the NBA Finals on Thursday

Porzingis has not played since April 29 after suffering a calf injury.

Boston Celtics star Kristaps Porzingis will return for Game 1 of the NBA Finals vs. the Dallas Mavericks on Thursday night, the forward confirmed Wednesday.

Porzingis, who has not played since April 29 with a calf injury, told reporters that he will play in Game 1 after missing 10 playoff games with his injury.

Porzingis suffered a non-contact calf injury during Game 4 of the first round against the Miami Heat. During that span, the Celtics finished off the Heat 4-1 before defeating the Cleveland Cavaliers 4-1, and sweeping the Indiana Pacers to win the Eastern Conference finals.

Porzingis's return was previously reported by The Athletic's Shams Charania. Per Charania, Porzingis successfully participated in multiple scrimmages in the past few days, indicating that he is healthy enough to return to the court.

Porzingis teased his return on Tuesday while responding to a question about being in top form, according to The Athletic's Jay King. Porzingis said that he was unsure about whether he was at 100 percent yet: "Good question. I don't know. We'll see," he said.

Despite hoping to return last week, Porzingis was eventually ruled out for Game 4 of the Eastern Conference finals on May 27. Prior to that game, Porzingis had been "accelerating his on-court ramp up" in order to make his return. It is unclear what caused the delay in Porzingis' return.

The 7-foot-2 forward, who has averaged 20.1 points and 7.2 rebounds this season, has missed 10 total games with the injury.

Although the Celtics have done well in the postseason without him, Porzingis will be an added boost as they face the Mavericks, and continue the push for Boston's first NBA title in 15 years.