The 23-year-old sat courtside as she attended the game to support her sister, Khloe Kardashian's boyfriend while she was notably absent.
She was wearing a loose-fitted black sweater and natural looking makeup as she cheered on his team.
As Tristan, 27, took a shot in a tense NBA game against the Philadelphia 76ers, fans began to boo the basketball player and Kendall jokingly joined in.
Showing that it was all light-hearted the model congratulated him after the game as she was seen chatting to him.
Kendall's former love-interest Ben Simmons, 22, was on the opposing team.
The pair split in August after dating for three months, after their summer fling came to an end over busy schedules.
In recent episodes for Keeping Up With The Kardashians, Kendall and her family were seen rushing to Khloe's aid after she went into labour soon after finding out that Tristan had been unfaithful.
At the time, the new mum decided to keep things civil for the sake of her baby, however her sister's weren't so keen on the idea.
During a scene in the delivery room, Kim Kardashian, 38, ran a finger across her throat behind Tristan's back, and couldn't resist making a joke.
But Khloe spotted her from her bed, and said: "Are you going to say hi to each other or no?" before the pair hug.
Kim later admitted to camera: "I am so relived that we made and we will be able to help Khloe through this delivery.
"As much as I want to go off (at Tristan), I don't think it's the time. I don't have to have a lot of interaction. I just have to be there for her."
Although it's unknown how the Kardashian family feel about Khloe's relationship a source recently revealed that the new mum is struggling with coming to terms with how to deal with her family still not trusting Tristan.
"[Khloe is] still very much insecure, [and is] struggling with trusting him to be on his own around other women when she isn't there," the source told IOL.
"In addition to her own insecurities about Tristan's infidelity, Khloe is continuing to struggle with her family's thoughts of Tristan as most of them haven't forgiven him for cheating, even though they are trying to support Khloe's decision to be with him. "Everyone in the family ultimately wants what's best for True, but they're wary that Tristan will cheat again, and they hate seeing how this is effecting Khloe."
There's no doubt that Kendall spotted cheering on her boyfriend will have boosted Khloe's confidence.
Got a story? email [email protected] or call us direct on 02077824220.
We pay for videos too. Click here to upload yours.
Source: Read Full Article