Paul George was frustrated with the officiating crew as the Los Angeles Clippers’ losing streak continued at the Denver Nuggets.

James Harden is still waiting for his first win in a Clippers jersey despite the team putting in an improved performance, losing 111-108 in a competitive NBA In-Season Tournament game on Tuesday.

Nikola Jokic had 32 points, 16 rebounds and nine assists for the hosts, who held off the Clippers despite George scoring 35 points, tying his season high as Harden added 21.

Los Angeles has lost five straight games with Harden since acquiring him last month. They are 0-6 on the road this season, 0-2 in the tournament and 3-7 overall.

The Nuggets took 32 free throws compared to the Clippers' 24 with Jokic making all 14 of his free-throw attempts.

George went to the line five times, which he felt was nowhere near enough, and was whistled for a technical foul for arguing with the referees shortly before halftime.

"We played great," George said, per ESPN. "It's tough, the adversity of playing against the extra three [officials]. 

"I thought they were awful. But, [against the] defending champs, we [were able to] to play better and there's a lot to be positive about. 

"I'm not one for moral victories, but I thought we showed more of a sign of a team that's close to getting it over the hump."

George, who also had seven rebounds, was asked to elaborate on his comments on the refs.

He added: "It was bad. Five free throws is very disrespectful on this night. So many times I got hit on layups, 3-pointers, it was constant.

"Jump shots, getting hit, smacked on the forearm. I mean, it was poor, a poor job. They [are] calling something on one end, they got to call it on the other.

"But, again, we [have] got to be able to beat these guys on their floor and not rely on that."

Harden sank three of his eight 3-point attempts as the Clippers produced their best performance since his arrival.

"I kept reiterating, I didn’t have a training camp or a preseason, so kind of learning on the fly," Harden said.

"Also getting myself into James Harden shape. This was definitely another step in the right direction and just keep improving."

The Nuggets' Reggie Jackson thinks it is only a matter of time until the Clippers put it all together.

"They’re still figuring it out," he said about George, Harden, Kawhi Leonard and Russell Westbrook. 

"You can see it, they’ve got a lot of talents that overlap. When you have superstars, superstars can do a lot of things. They gave us a great punch."

Denver is 9-2 for the season, 7-0 at home and 2-0 in the tournament, even with point guard Jamal Murray still out with a hamstring injury.

Both teams are back in action on Friday with the Clippers hosting the Houston Rockets while the Nuggets are on the road against the New Orleans Pelicans.