The mother of LeSean McCoy's young son said in a court filing Tuesday that she agreed to defend the Buffalo Bills running back against an allegation that he abused the boy even though she said she knew the accusation was true.



In a three-page document filed in Fulton County State Court in Georgia, Stephanie Maisonet said she reluctantly agreed to the deal in exchange for McCoy offering to drop a custody case and allow her to enroll their 6-year-old son in a school in Miami.



Maisonet said she previously filed a report with child services -- she did not say where or when -- after her son would come home bruised and crying after visiting McCoy. She also included a picture of her son with bruises on his chin in the filing.



"I regret ever agreeing to help LeShawn McCoy in this case," Maisonet said in the court document that misspelled McCoy's first name. "I feel like I am sending our son to a monster every two weeks. LeShawn McCoy should be held accountable for his actions, regardless of his career choice or his income."



McCoy responded by calling Maisonet's allegations "provably false, outrageously inaccurate and offensive," in a statement posted on his Twitter account.



"I have a loving and close knit relationship with my son. That young boy is my whole life," McCoy wrote. "With a custody case coming in November, I can see why these false allegations are surfacing."



Maisonet's allegations were added to a lawsuit filed last month by McCoy's ex-girlfriend. Delicia Cordon alleges McCoy failed to protect her after she was bloodied, beaten and had $133,000 worth of jewelry stolen by an intruder at a home the running back owns in Milton, just outside Atlanta.



Cordon also said McCoy would "often brutally beat his dog," and would "aggressively, physically discipline and beat his young son."



Last week, McCoy's lawyers asked a judge to throw out the lawsuit because there was no basis to hold him responsible for Cordon being hurt. They also argued the lawsuit was filled with unrelated false, salacious allegations that were meant to embarrass McCoy and cast him in a bad light.



The Bills have backed McCoy, with general manager Brandon Beane previously saying no evidence has come to light to change McCoy's status with the team. The 30-year-old is playing in his 10th NFL season and fourth with Buffalo after being acquired in a trade with Philadelphia.



He led the NFL in yards rushing in 2013.



Maisonet said a note posted on her Instagram account saying the allegations of abuse against McCoy were false was written by McCoy's friend, Tamarcus Porter, who is a co-defendant in the lawsuit. She said she provided Porter the password to her account.

Cordon did not accuse McCoy of playing a role in the attack, which occurred in the early morning hours of July 10.



Maisonet alleged that McCoy may have been involved, accusing him of "potentially orchestrating this heinous incident."



On July 9, she said, she overheard McCoy speaking to someone on the phone and saying, "I need to get this (person) out of my house."



Maisonet questioned the timing of McCoy's offer, which she said came after the home invasion.



"I found this to be odd because he has been fighting me so hard against that during our custody battle," Maisonet said. "Also, if he did not have any involvement in the home invasion, there is no need to make such an extreme offer."