Kevin Durant has missed Brooklyn's last 13 games, and the team has plummeted in the standings as a result.
The means the earliest Harden could play for the Philadelphia 76ers is at home Tuesday against Boston Celtics.
Jayson Tatum had 24 points, Marcus Smart added 22 points, five steals and two crucial free throws, and Boston beat Denver.
DeMar DeRozan delivered another big performance scoring 35 points and got plenty of help from his teammates along the way.
Luka Doncic scored 28 of his career-high 51 points in the first quarter, and the Mavericks beat the Los Angeles Clippers 112-105.
Julius Randle scored 28 points and matched his season high of 16 rebounds, and the New York Knicks earned their first win of the road trip.
In salt lake city The Jazz ended The GSW's winning streak.
Bradley Beal is done for the rest of the season.
Joel Embiid sure was dominant in this one, finishing with 40 or more points for the seventh time this season.
Nikola Jokic scored 23 points in the second and third quarters when Denver went from trailing by seven to leading by 21.