Chris Brown REHAB

Chris Brown just entered rehab! But his reps are saying it’s not over drugs, it’s for anger management! Presumably a prevent move to avoid a lengthy prison sentence.

Sources told TMZ, Brown’s attorney, Mark Geragos, just dropped him off at a facility in Malibu. The move doesn’t come a day too soon.

We’ve learned the L.A. County probation department is going full bore in its investigation to determine if Brown violated his probation in the Rihanna case by getting arrested in D.C. over the weekend … after allegedly punching a guy in the nose.

Sources tell TMZ, Brown flew to L.A. after getting released from the D.C. jail and met with L.A. County Probation Department officials today.

We’re told it’s likely the Probation Department will determine that Brown violated his probation, and a judge could sentence him to as much as 4 years in prison.

Along with Geragos, we’re told his mom and GF Karrueche accompanied Chris to the facility. Geragos and the others went to dinner after dropping Chris off. We asked him about Chris, but he wanted to talk about his meal.

The rehab move is designed to show a measure of good faith and contrition but let’s hope the judge is smarter than that!=