Maine native Cooper Flagg is expected to be back in action Monday night after helping the Dallas Mavericks win their first game of the season on Sunday.Flagg scored 22 points and added four rebounds, four assists and a block in the Mavericks’ 139-129 victory over the Toronto Raptors.The 18-year-old from Newport also threw down some highlight-reel dunks, including a one-handed slam while being fouled by Sandro Mamukelashvili. Flagg made the ensuing free throw to cap off a 13-0 Dallas run in the third quarter.According to ESPN, Flagg became the fifth-youngest player in NBA history to score at least 20 points in a game. The only other players to accomplish that feat at a younger age are Jermaine O’Neal, Kobe Bryant, Tracy McGrady and LeBron James. Bryant, McGrady and James are all members of the Basketball Hall of Fame.The NBA said Flagg became just the second player in NBA history at 18 or younger to record a game of 20-plus points and zero turnovers, joining Bryant in the record books.Flagg averaged 16.7 points, 6.3 rebounds, 3.3 assists, 0.7 blocks and 0.7 steals in his first three NBA games. He shot 43.9% of his shots, including 33.3% of his 3-pointers, while going a perfect 10-for-10 from the free-throw line.The Mavericks host the reigning NBA champion Oklahoma City Thunder on Monday.

PORTLAND, Maine —

Maine native Cooper Flagg is expected to be back in action Monday night after helping the Dallas Mavericks win their first game of the season on Sunday.

Flagg scored 22 points and added four rebounds, four assists and a block in the Mavericks’ 139-129 victory over the Toronto Raptors.

The 18-year-old from Newport also threw down some highlight-reel dunks, including a one-handed slam while being fouled by Sandro Mamukelashvili. Flagg made the ensuing free throw to cap off a 13-0 Dallas run in the third quarter.

According to ESPN, Flagg became the fifth-youngest player in NBA history to score at least 20 points in a game. The only other players to accomplish that feat at a younger age are Jermaine O’Neal, Kobe Bryant, Tracy McGrady and LeBron James. Bryant, McGrady and James are all members of the Basketball Hall of Fame.

The NBA said Flagg became just the second player in NBA history at 18 or younger to record a game of 20-plus points and zero turnovers, joining Bryant in the record books.

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Cooper Flagg became the 2nd player in NBA history at 18 years or younger to record a game with 20+ PTS and 0 TOs in tonight’s win vs. TOR 🤯

The other? Kobe Bryant in 1997 vs. SAC. pic.twitter.com/dissttBtUa

— NBA (@NBA) October 27, 2025

Flagg averaged 16.7 points, 6.3 rebounds, 3.3 assists, 0.7 blocks and 0.7 steals in his first three NBA games. He shot 43.9% of his shots, including 33.3% of his 3-pointers, while going a perfect 10-for-10 from the free-throw line.

The Mavericks host the reigning NBA champion Oklahoma City Thunder on Monday.