Kawhi Leonard was the hero again for the Los Angeles Clippers, who completed their comeback against the Dallas Mavericks in Game 7 to progress to the Western Conference semi-finals.

A deciding game was needed in the opening-round series after Leonard erupted for 45 points to help the Clippers avoid elimination in the NBA playoffs on Friday.

In the winner-takes-all showdown at Staples Center, Clippers superstar Leonard stepped up to the plate with a double-double as the Clippers prevailed 126-111 to clinch the series 4-3 on Sunday.

Leonard posted 28 points, 10 rebounds, nine assists and four steals to lead the Clippers to a date with the top-seeded Utah Jazz in the second round, starting on Tuesday.

Luka Doncic carried the load for the visiting Mavericks in Los Angeles, but the All-Star's 46 points and 14 assists were not enough.

The fourth-seeded Clippers were 3-5 in Game 7 in franchise history – losers in each of their last three appearances (2015 Western Conference semi-finals, 2017 first round and 2020 Western Conference semi-finals) and looking to avoid becoming the fifth team in NBA history to lose four consecutive Game 7s.

While the Clippers led by eight points at half-time, the fifth-seeded Mavericks outscored the home team 19-6 to open the third period for an 81-76 advantage.

That sparked the Clippers, who responded with a 24-4 run for a 100-85 lead entering the fourth quarter and while the Mavericks chipped away at the deficit, there was no denying Leonard and the championship hopefuls – who became the first home team to win in this series.

In the earlier game, MVP finalist Joel Embiid made his return but top seeds the Philadelphia 76ers were upstaged 128-124 by the Atlanta Hawks in their Eastern Conference semi-final opener.

Embiid made his way back to the court following a meniscus tear and while he put up 39 points, the Hawks silenced a hostile crowd to draw first blood at Wells Fargo Center.

Trae Young had 25 of his 35 points in the first half as the fifth-seeded Hawks made a blistering start to the contest in Philadelphia.

Atlanta led Philadelphia 75-54 at half-time. According to Stats Perform, that is the highest first-half point total by a road team in a postseason series opener in history.

Young joined Lew Alcindor as the only players in NBA history to score 30-plus points in each of the first four road games of their playoff careers, while he became the first Hawks player in history to have 35-plus points and 10-plus assists in a postseason game.

Nuggets at Suns

The Phoenix Suns will host the Denver Nuggets in their Western Conference semi-final opener on Monday. In the east, the Brooklyn Nets can take a 2-0 lead over the Milwaukee Bucks.