In October, Cuban wrote West had a "long, long , long way to go, but he has taken the first steps" along with posting a picture of him horseback riding.
The Root's Jay Connor reported in January how West was shown in a video getting assaulted in the middle of the street.
A photo of West appearing to panhandle in Dallas then surfaced in September. TMZ Sports reported his former head coach Doc Rivers, college teammate Jameer Nelson and the players union "have actively been trying" to aid the 37-year-old.
According to Shams Charania of The Athletic and Stadium, Cuban personally reached out to West's family to see what he could do:
Shams Charania @ShamsCharania
Mark Cuban reached out to Delonte West's mother, Delphina Addison, asking how he can help. Answer was simple: Find Delonte. Cuban did on Monday, waited with West until his mother arrived to hotel, and West finally took step many close to him have awaited: Entered rehab. 🙏🏽 https://t.co/IiVKGH3a62
Cuban confirmed to ESPN's Tim MacMahon in late September that he picked West up at a gas station in Dallas with the goal of getting him into rehab.
West spent eight seasons in the NBA. His most recent stint came with the Mavericks in 2011-12. Doctors diagnosed him with bipolar disorder after a preseason game while playing for the Cleveland Cavaliers in 2008.