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Lamar Odom checked out of rehab today (Thursday) after one day in treatment, according to People magazine.

Khloé Kardashian's husband, who was arrested for DUI last week, reportedly checked into the drug and alcohol center on Wednesday morning and left Thursday afternoon with an assistant. No reason was immediately given for why he bailed. Lamar's marriage has been on the rocks since word got out that he's been abusing drugs and alcohol. Khloe was reportedly unaware that NBA star had entered treatment.

According to TMZ, Lamar went into rehab last summer, but bailed after only three weeks.