Two men face assault and battery charges after Brookline police said they kicked a man in the head, knocked his teeth out and broke his jaw while leaving a party early Friday morning on Kent Square.

Two men face assault and battery charges after Brookline police said they kicked a man in the head, knocked his teeth out and broke his jaw while leaving a party early Friday morning on Kent Square.

Now Richard Michael Dugan, Jr., 20, of 42 Green Drive, Stoughton, and Dennis Leung, 21, of 53 Quint Ave., Apt. 2, Allston, face charges of assault and battery with a dangerous weapon (shod foot) and assault and battery causing serious injury, police said.

Police also filed the criminal charge of mayhem against Dugan, police said.

Police were called to Kent Square at about 12:50 a.m. by the victim's sister, who hosted a dinner party for friends at her parents' home that night. During questioning of the victim and his sister, police reported that Dugan and Leung were invited to the party, but showed up "belligerent and highly intoxicated."

The victim tried to escort them out, but a witness told police that the victim and two suspects began arguing outside. Leung then "sucker punched" the victim, and Dugan grabbed the victim, a witness told police. All three wrestled on the sidewalk and street, and when another partygoer tried to break up the fight, the witness told police that Leung and Dugan kicked the victim in the head and face.

During an interview, the victim said the fight was quick, but wasn't sure if he blacked out.

When an officer arrived at the scene, he reported that the victim was "bleeding profusely" from his face, was missing several teeth, plus his cheeks, brow and jaw were swollen. After the victim was transported to Beth Israel Deaconess Medical Center, police reported that his jaw was broken and needed to be wired shut. The victim also was using a suction tube to "take out the excess blood pooling in his mouth," according to a police report.

Police said the victim didn't know his assailants, but his sister knew them from work.

After the fight, Leung and Dugan ran down Kent Square toward Kent Street. Police searched for the two men, but couldn't find them or contact them directly. Police did reach the mothers of the two men, but neither woman knew where their sons were that morning.

Brookline police obtained arrest warrants for Leung and Dugan from Brookline District Court, and arrested Leung at about 11 a.m. on March 18 and Dugan at about 6 p.m. on March 19, both of whom were found at their homes, police said.

Leung declined to be questioned by police, but Dugan agreed to an interview. Apparently, someone during the interview suggested the victim was punched only twice.

"When (an officer) explained to Dugan the extent of (the victim's) injury and that it was unlikely that two punches could cause that much damage, Dugan said nothing," according to a police report.

The pair were arraigned at Brookline District Court earlier this week, and return to court on May 2.

John Hilliard can be reached at jhilliard@wickedlocal.com, twitter.com/draillih or 781-433-8362.