The Chicago Bulls finally have a second win. Norman Powell made sure of it.

Powell scored nine of his game-high 33 points in overtime as the Bulls beat the Atlanta Hawks 125-117 in an NBA Cup game Friday night at the United Center.

Chicago had lost eight straight. Josh Giddey had his first triple-double of the season with 15 points, 14 assists and 10 rebounds.

How it got to overtime

The Bulls led 33-24 after one quarter and pushed the lead to 18 early in the second. Atlanta got within 60-53 by halftime.

Chicago turned it over eight times in the third quarter and led only 84-83 going to the fourth. The Hawks tied it with about four minutes left.

Powell missed a tough baseline shot with four seconds left in regulation. Atlanta had one last chance but could not score.

Powell takes over

In overtime Powell scored more points than the entire Hawks team. He hit a runner to tie it, a 20-foot step-back jumper and a driving finger roll before making free throws to close it out.

Matas Buzelis hit a big 3-pointer with 23.5 seconds left in overtime to put Chicago up six.

Powell had missed the previous two games with back tightness.

"Collectively played a full game," Powell said. "Had to go into overtime, but everyone contributed."

Relief for the Bulls

"It's not easy to lose a lot of games," coach Tiago Splitter said. "You've got to stay composed; you've got to stay locked in. But that frustration's still there. And when you win a game, sometimes that stuff comes out."

Seven Bulls scored in double figures. Isaac Okoro and Jalen Smith scored 15 each, Patrick Williams had 13, Buddy Hield had 12 and Buzelis had 11.

Chicago made 20 of 50 3-pointers and had 34 assists. It also committed 25 turnovers that led to 34 Atlanta points. The Hawks made only 8 of 40 shots from deep.

Smith also had 14 rebounds before leaving early in overtime after a hard fall on his left wrist. He is day-to-day.

Life without Caleb Wilson

It was Chicago's first game without rookie Caleb Wilson, who broke his right hand and is expected to miss a long stretch.

The Bulls also signed center Orlando Robinson from their G League team to fill their 15th and final roster spot.

What's next

The Bulls are 2-9 and 1-1 in NBA Cup group play. They visit Minnesota on Saturday and Cleveland on Monday.

Atlanta fell to 7-6.