Johnny Manziel and his former girlfriend both posted video of them partying on Sunday at the LIV nightclub in Miami.
That could be a breach of the conditions of the arrangement reached with prosecutors to have domestic violence charges dropped against the former Cleveland Browns quarterback and Texas A&M Heisman trophy winner, according to an article on the TMZ sports website.
Manziel struck a deal last month agreeing not to break the law, to finish anger management courses and not to have any contact with Colleen Crowley for a year, TMZ reported.
None of the video shows the pair interacting or even near each other, a report from the Houston Chronicle states.
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Dallas authorities said Tuesday that they were looking into the reports.
“Prosecutors are currently reviewing the information and case to ensure that he is compliant with his terms,” said Brittany Dunn, a spokeswoman for the Dallas County district attorney’s office.
Manziel was accused by Crowley, a TCU student, of repeatedly hitting her Jan. 30 as they drove from Hotel ZaZa in Dallas to her apartment in Fort Worth.
Manziel was indicted in April on a misdemeanor charge of assault/family violence.
At a hearing in May, Manziel was told not to have any contact with or go near Crowley, and as a condition of his $1,500 bail he was not allowed to possess a firearm.
Both sides agreed in December that if Manziel could meet various conditions imposed on him for a year, the charges against him would be dropped, ESPN reported.
This report includes material from the Star-Telegram archives.