Three martial arts experts were ordered to surrender their passports today following their arraignments on charges that they beat a pair of Revere man outside a Chelsea restaurant, injuring one man so badly that he may suffer permanent brain damage as a result, Suffolk County District Attorney Daniel F. Conley said today.

Acting on a request by Assistant District Attorney Jennifer Lindade, Chelsea District Court Judge James LaMothe ordered BRUNO DACOSTA (D.O.B. 6/7/85) of Everett, IURY DEBS (D.O.B. 1/7/84) of Lynn, and DIEGO SANTOS (D.O.B. 9/16/85) of Everett not to leave Massachusetts while their cases are pending and to surrender their passports to the court. Lindade recommended that each man be held on $50,000 cash bail each; LaMothe set bail at $2500 each.

Each defendant is charged with two counts of aggravated assault and battery, with those charges reflecting injuries to two men inflicted during an attack in the parking lot of a Revere Beach Parkway McDonalds at about 1:30 Monday morning. Investigators believe the two groups had first crossed paths at Club Lido in Revere a short time earlier.

Witnesses told investigators that Santos struck one of the victims, a 22-year-old Revere man, in the face with no provocation, knocking him to the ground. When another man, also a Revere resident, approached the assailants, Debs allegedly punched him in the back of the head and knocked him to the ground. All three assailants kicked and slapped the two victims as they lay on the ground.

Friends of the first victim rushed him to Whidden Memorial Hospital, where doctors ordered him transported to Massachusetts General Hospital for surgery. He was operated upon and placed in an intensive care unit with severe head trauma and possible brain damage.

The second victim was also transported to Whidden Memorial, where he was treated for a broken jaw. That man’s injuries required that his jaw be wired shut and further required reconstructive surgery.

Victims and civilian witnesses were able to identify the assailants by name and photo. All three, witnesses said, were affiliated with a Somerville martial arts center. Acting on that information, Chelsea Police detectives obtained warrants for their arrests and took them into custody early this morning.

Dacosta is represented by attorney Jose Espinosa, Debs by attorney Bruce Linson, and Santos by attorney Hillary Price. All three will return to court on June 10.