CHICAGO — C.J. McCollum scored 25 of his 32 points after halftime, including the tiebreaking basket with 56.5 seconds remaining in overtime, and the Portland Trail Blazers beat the Chicago Bulls 124-120 on Monday night.

Al-Farouq Aminu added a season-high 24 points, and Evan Turner also had his season best with 22 for Portland, which was without leading scorer Damian Lillard for a fifth straight game.

Kris Dunn scored 22 points and Nikola Mirotic had 18 points off the bench for Chicago, which blew a late lead for a second straight game. The Bulls lost for only the fourth time in 14 games since Mirotic returned to the lineup.

Lauri Markkanen finished with 19 points, including a jumper from the corner that tied it at 120 with 1:14 left in overtime.

McCollum then made his short floater and added a pair of late free throws.

McCollum and Aminu, who made 5 of 6 3-pointers after halftime, carried the Blazers’ offense as they rallied from a seven-point deficit.

Led by Mirotic and Bobby Portis, the Bulls’ bench helped them overcome a sluggish start. Each had nine points in a second quarter in which Chicago’s reserves outscored Portland’s 18-7. Mirotic hit a deep 3-pointer with 5:21 left before the half to give the Bulls a 43-39 lead after they trailed by as many as 10 points early.

Portis finished with 14 points and seven rebounds. Neither Mirotic nor Portis played the final 71/2 minutes of regulation or overtime.

Houston’s Hardento miss 2 weeks

HOUSTON — Rockets star James Harden will miss at least two weeks with a left hamstring strain.

The team announced Monday that the NBA’s leading scorer has a grade 2 strain and will be re-evaluated in two weeks.

Harden was injured on a missed layup late in the fourth quarter of Houston’s 148-142 double-overtime win against the Los Angeles Lakers on Sunday night. He is averaging 32.3 points and 9.1 assists per game.

Thomas ready for Cavs debut

CLEVELAND — Isaiah Thomas, sidelined with a hip injury since last season’s Eastern Conference finals, will make his debut for the Cleveland Cavaliers tonight against the Portland Trail Blazers.

After months of rehab, the All-Star point guard will take the floor for the first time with the Cavaliers, who acquired him last summer in the blockbuster trade that sent Kyrie Irving to the Celtics.

“It’s been a long process for me,” Thomas said Monday following practice. “It’s been a frustrating and tough process, but at the same time you got to trust it.”

Coach Tyronn Lue said Thomas would come off the bench and initially play limited minutes.

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