Cincinnati Bengals running back Cedric Benson allegedly beat up his roommate so badly this weekend, the victim thought he was missing teeth ... this according to the police report obtained by TMZ.
The roommate, Clavens Charles, told police he was standing on a street corner in Austin, Texas yesterday ... when "he was approached by a hostile and aggressive Benson who told Clavens they needed to talk about their problems."
According to the docs, Clavens claimed he and Benson "began to talk and argue about their living arrangements when all of the sudden Clavens was struck on the left side of his face with a closed fist thrown by Benson."
"Clavens went on to say that Benson continued to strike him with several more closed fists all over Clavens face resulting in severe injury to his face."
Clavens told police he was experiencing "severe bleeding from the mouth, possible loss of teeth and massive swelling of the left cheek."
Benson was arrested -- and was released after posting $10k bond. Benson has been ordered to stay at least 200 yards from Clavens.
UPDATE: A rep for the Bengals tells TMZ, "We don’t believe it’s appropriate even in normal circumstances to comment on legal matters that aren’t resolved, and the factor of the lockout prevents any direct contact with players or their attorneys."
The rep adds, " Also, just to note, Cedric is not under Bengals contract presently. His deal expired and he’s due to become a free agent when normal business resumes.”