Report: 'Last straw' for Khloe, Odom

Lamar Odom met with estranged wife Khloe Kardashian at the couple's home this week, and their showdown over his alleged drug use was the "last straw" for their marriage, TMZ reports.

Odom appeared tired, gaunt and "out of it" when he showed up at their Tarzana, Calif. home promising to kick his drug habit on his own, a source told TMZ. But Kardashian insisted he go to rehab and kicked him out when she found a pipe and what appeared to be a stash of drugs.

Odom mostly has stayed silent this summer amid reports of drug abuse, a DUI arrest , a trip to rehab and the rumored breakup of his marriage , although on July 12 he tweeted in part, "Wifey is real," an apparent reference to Kardashian, and in his most recent tweet he praised the "family that I married into" as "the ONLY ones that have been here consistently 4 me during this dark time. Only person 2 blame is myself."

Odom, who played for the Los Angeles Clippers last season, is a free agent and has yet to sign with a team. NBA training camps opened this week.

The Associated Press contributed to this report.