LAS VEGAS — Charles Oakley, one of the NBA’s all-time tough guys and now a Charlotte Bobcats assistant, has sued a Las Vegas resort over what he calls a May 2010 “gang-style beat down” by security guards who injured him.

Oakley filed the lawsuit Thursday in Clark County District Court against the Aria hotel-casino at MGM Resorts International’s CityCenter complex, the Las Vegas Sun reported. Five security officers also were named in the lawsuit.

Oakley was an invited guest at Aria’s VIP pool area May 28 when he left the area, the complaint says, but security officers and staff prevented him from re-entering.

After a “verbal altercation” with officers, Oakley attempted to return to his room when he was “assaulted” by them in a secluded area of the resort, the lawsuit alleges.

The complaint contends the officers wrestled Oakley to the ground and punched and handcuffed him, and that he was taken to the hospital with injuries to his neck, back, head and wrist, “all or some of which may be permanent and disabling.”

The complaint alleges negligence, assault, assault with excessive force, battery, false imprisonment and defamation. It seeks unspecified general, special and punitive damages.

An MGM Resorts International spokeswoman said the company doesn’t comment on pending litigation.