Sad news for Lamar Odom.

According to a new report, the NBA is completely heartbroken over Khloé Kardashian's romance with Tristan Thompson. Lamar is so "devastated," he even cried over the news of his former love.

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“Khloé told him she’s in love with Tristan and that she’s making him the number one priority in her life,” a source told Hollywood Life. “That absolutely devastated Lamar. He was in complete shock. That was the first time Lamar’s cried over Khloé in a very long time. He’s mad at her. He’s in denial about [a lot] of things and is pissed that his dream of being married, living together and trying for a family with Khloé has come to an end."

khloe kardashian tristan thompson splash

Tristan and Khloé

In Touch exclusively revealed the KUWTK star and Tristan's surprise engagement last week. Further, the couple is in talks of marrying on their own reality show.

"She's delighted to be engaged and can't wait to tie the knot early next year," a source revealed to In Touch.

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Khloé re-filed for divorce with Lamar shortly after he returned from rehab. The NBA star previously suffered from a near-fatal overdose of cocaine and opiates.