Lamar Odom has the entire NBA world concerned, especially his former teammates.

Following the confirmation from various sources that Odom is battling an unspecified drug problem,  Los Angeles center Pau Gasol voiced his concern.

Writing on his Twitter page in two languages, the Spanish basketball star said the rumors and reports about Odom have gotten to him.

TMZ first broke the story that Odom has reportedly been battling a crack cocaine addiction for years.

Last week, his reality star wife Khloe Kardashian threw him out of their Los Angeles home, telling him to not return until he gets clean.

While over the weekend Odom was thought to be missing, his Agent Jeff Schwartz told ESPN on Monday that "Lamar is not missing. His wife knows exactly where he is."

Schwartz didn't get into details regarding Odom's health, but he noted that "playing in the NBA is still very much a part of Lamar's plans."

Odom, who has been pursued in free agency this summer by his old team the Lakers, most recently played for the Los Angeles Clippers who were also interested in re-signing him.

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