Tristan's Posse Knew He Was Cheating & Tried To Keep Him From Getting Caught

Poor Khloe!

Tristan Thompson has been cheating on his soon-to-be baby momma for months, and it turns out his inner circle were in on it the entire time, RadarOnline.com can exclusively report!

According to sources close to the NBA player, Thompson's fellow teammates and close friends — including fellow Cavalier, Jordan Clarkson, had one job — protect him from being caught.

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In a shocking new video obtained by RadarOnline.com from the infamous night at New York City's PH-D Rooftop Lounge, Thompson is seen with his hoodie off as he chugs a bottle of water. Meanwhile, his posse is huddling around him, as he tries to keep a low key in the corner.

But apparently not low key enough.

"This is Khloe Kardashian's baby daddy Prob stressed that he's going to be a dad in .5 secs and he's AT THE CLUB," the eyewitness who captured the video wrote as a caption.

"I saw him there towards the DJ, he was talking to another person," the onlooker told RadarOnline.com. "He left early around 8 PM. He left with the squad he came with — other Cavaliers. They left out back."

Another eyewitness tells RadarOnline.com "he had a bunch of people around him to block the view but everyone there knew he was with another girl. They tried to stop pictures but ended up leaving shortly after."

As RadarOnline.com previously reported, Thompson was caught kissing with his mistress — Instagram dancer, Lani Blair — Saturday night at the rooftop. Other partygoers who were there at the time say they saw the basketball player "making out with her at least three times."

Another video that same night surfaced showing the two together outside a hotel.

Sources confirmed to RadarOnline.com, Khloe is "devastated" by the news, and plans to dump him for good after the birth of her first child.

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