The former NBA player, 38, was lined up to star in the reality show that has a retribution theme this year – after he confessed to having “multiple affairs” behind ex-wife Khloé’s back.
A TV source said: “Bosses were really keen on signing Lamar as their star contestant for this year’s line-up.
“The upcoming series is all about celebrities facing their demons and there’s no better character than Lamar in terms of someone who’s gone through a journey of redemption.
“He had a massively successful career as a sportsman and a beautiful wife but it all came crashing down due to his infidelities and drug and drink addictions.
“Lamar was offered a huge fee to take part in the series – but eventually turned down the opportunity.”
In 2015 Lamar came close to death after he was found unconscious at a brothelfollowing a drugs binge.Khloe, who divorced Lamar in 2016, said making medical decisions for her ex while he was in a coma was the most emotionally stressful time of her life.
Speaking in 2015 she said: “They told me he had four hours. It’s a horrible call to get.
“Having to run these tests or make medical decisions, it’s terrifying.”
Lamar made a miraculous recovery and later admitted to being unfaithful on Khloe, who’s now in a relationship with Tristan Thompson.
In an interview last year he said: “When I became Khloe Kardashian’s man and on TV, it made me look more enticing.
“That wasn’t the stand-up thing to do. I wish I could have kept my d*** in my pants.”
Last year’s Khloe best pal Malika Haqq appeared on the reality series but refrained from telling secrets about The Kardashians.
This story originally appeared in The Sun.