Chiefs star Tyreek Hill denies abuse allegation in letter to NFL

Wide receiver Tyreek Hill is the subject of an NFL investigation.

(CNN)In a letter to the NFL, Kansas City Chiefs receiver Tyreek Hill denies he has ever punched his son or grabbed the boy's arms, and his lawyer says he has text messages that show Hill's fiancée has hurt the child in the past, ESPN reported Thursday.

The three-plus-page letter, signed by one of Hill's attorneys and obtained by ESPN, says the two-time All-Pro will cooperate with the league's investigation into allegations Hill abused his 3-year-old son.