Memphis rookie Cameron Boozer had 18 points, 12 rebounds and 12 assists for his first NBA triple-double, AP and Rookie Wire report. The Grizzlies beat the Portland Trail Blazers 124-103 on Thursday night to move to 5-0, the outlets report.

Boozer made 6 of 10 shots, including 4 of 5 from three-point range, Rookie Wire reports. At 19 years and 103 days old, he is the second-youngest player ever to post a triple-double, behind only Josh Giddey. He was the fourth pick in the draft, the outlet reports. He leads all rookies with three double-doubles so far.

"It is nice. I'm going to keep going," Boozer said after the game, Rookie Wire reports. He said there is "a lot more to come" this season. He is averaging 15.4 points and 10.8 rebounds a game, the outlet reports.

Seven other Memphis players scored in double figures, AP reports. Isaiah Stewart led the bench with 18 points. Deni Avdija led Portland with 24 points, nine rebounds and seven assists. Ja Morant scored 14 points in his first game against his old team, but he left in the fourth quarter with a hamstring injury and did not return, the outlet reports.

Memphis pulled away late and outscored Portland 33-20 in the fourth quarter, AP reports. The Grizzlies are 5-0 for the first time since 2015 after sweeping a four-game road trip, Rookie Wire reports. They host Sacramento on Saturday.

What we know: Boozer had his first triple-double, and Memphis is unbeaten.
What we don't: How serious Morant's hamstring injury is.