DALLAS – Cooper Flagg scored 20 points in the first half and the Dallas Mavericks built a commanding halftime advantage over the Brooklyn Nets on Sunday night at American Airlines Center.

Flagg made seven of his first 10 shots, including two 3-pointers, and added seven assists and four rebounds as Dallas took a 66-46 lead into the break.

Kyrie Irving contributed 11 first-half points for the Mavericks, who were seeking their third consecutive victory after defeating the Utah Jazz 112-100 on Friday.

Dallas shot 61.9 percent from the field in the opening half and made six of 15 attempts from 3-point range.

The Mavericks led 33-26 after the first quarter before outscoring Brooklyn 33-20 in the second. Dallas built its advantage to as many as 26 points while consistently finding high-percentage scoring opportunities.

Michael Porter Jr. led Brooklyn with 16 points and seven rebounds at halftime. Julius Randle added seven points.

The Nets, playing the second night of a back-to-back, were coming off a 124-121 loss to the Atlanta Hawks on Saturday. Brooklyn surrendered a 17-point advantage in that game.

Dallas entered Sunday at 5-4 under first-year coach Dusty May, while Brooklyn was 2-7.

Flagg has emerged as the Mavericks’ leading offensive contributor early in the season, combining perimeter scoring with playmaking responsibilities.

The Mavericks were also looking to continue their recent success against Brooklyn after winning nine of the teams’ previous 10 meetings.

UP NEXT: Dallas hosts the Indiana Pacers on Monday. Brooklyn’s next opponent and the final results of Sunday’s game require confirmation.