Ex-NFL star Albert Haynesworth was arrested for domestic violence and disorderly conduct Monday ... after an alleged shouting match with his ex-GF, Brittany Jackson.
Cops were called to the home of Brittany Jackson's current boyfriend in Cleveland, TN around 4:30 PM ... after Haynesworth allegedly showed up unexpectedly and began yelling at both of them.
Jackson claims Haynesworth drove 2-and-a-half hours from his home in Franklin to confront them in person after making violent threats over the phone.
Once police arrived, Brittany and her boyfriend told Haynesworth to stop yelling and cussing ... but the 39-year-old ex-NFL star allegedly continued to cause a scene.