Bradley Beal, Kristaps Porzingis and Jrue Holiday all made their debuts with new teams as the NBA preseason began to ramp up with six games on Sunday.

Beal scored 11 points in 14 minutes as the Phoenix Suns opened their preseason with a 130-126 overtime win over the Detroit Pistons. The three-time All-Star joined a star-studded Suns roster in June after being acquired from the Washington Wizards, the team he spent his first 11 seasons with.

Another Suns newcomer, Grayson Allen, paced Phoenix with 18 points on 7-of-11 shooting off the bench. Kevin Durant and Devin Booker each had 12 points as part of a starting five that also included Beal.

Porzingis, also traded out of Washington in the offseason, scored 17 points in his first outing as a Boston Celtic to help his new team to a 114-106 victory over the Philadelphia 76ers.

The 7-foot-3 veteran standout is part of a remade Celtics roster that also includes Holiday, whom the Celtics acquired last week from the rebuilding Trail Blazers after briefly being obtained by Portland in the blockbuster trade that sent Blazers icon Damian Lillard to the Milwaukee Bucks.

Holiday came off the bench to play 22 minutes, though he shot just 2 of 10 from the field for six points.

Payton Pritchard sparked Boston with 26 points just hours after signing a four-year, $30 million extension. The fourth-year guard finished 6 of 11 from 3-point range.

Lillard did not play in the Bucks' preseason opener, a 105-102 win over the Chicago Bulls in which Marjon Beauchamp led Milwaukee with 18 points and nine rebounds.

The Bucks also sat Giannis Antetokounmpo, though the two-time MVP's older brother, Thanasis, contributed 14 points on 6-of-8 shooting.

Elsewhere around the league, Gary Trent Jr. scored 22 points to lead the Toronto Raptors to a 112-99 win over the Sacramento Kings in Vancouver; Utah's Kris Dunn made all seven of his field goal attempts for 15 points as the Jazz posted a 101-96 win over the Los Angeles Clippers in Honolulu, and Jake LaRavia scored the final five points of overtime as the Memphis Grizzlies outlasted the Indiana Pacers, 127-122.

Jarace Walker, the eighth overall pick of this year's draft, had 19 points and nine rebounds in his Pacers debut.