Denver Broncos linebacker Jonathon Cooper has been arrested for a second time this month after authorities accused him of violating a protection order. According to court records (via ESPN ), Cooper was taken into custody Thursday night (June 11) and now faces additional charges related to an alleged protection order violation and harassment stemming from repeated phone calls. The latest arrest comes just days after the 28-year-old NFL player was already facing multiple charges connected to an incident in Parker, Colorado on June 4 . Since then, prosecutors have added additional allegations to the case, including a felony count of second-degree assault by strangulation and a misdemeanor assault charge. Court documents state Cooper's girlfriend was granted a protection order following the earlier arrest. Investigators claim Cooper contacted her numerous times Thursday through text messages and phone calls before allegedly going to her apartment and knocking on her door.…