Jacksonville Jaguars defensive end Dante Fowler was caught on a surveillance video watching his girlfriend and the mother of his child fight inside a Florida apartment building on Feb. 1 (video below).
In the video, Fowler stands between two women, but then steps back and appears to signal the start of the brawl, reports TMZ.
The women beat each other as Fowler stands off to the side and watches the spectacle for some time before finally pulling his baby's mama off his girlfriend.
The police were not called, and charges were not filed, notes the gossip site.
Fowler later said in a statement, "I am embarrassed and have apologized for my actions to everyone involved," reports TMZ.
"As a family, we have been dealing with this moment and the conflict that led to it since this occurred," Fowler added. "The video surfacing is a sad reminder that emotions got the best of all of us. I take 100 percent responsibility for everything that happened."
The Jaguars said in a statement: "Dante brought the incident to our attention prior to the video being released and was embarrassed and remorseful."
The NFL team didn't say how long it knew about the video, but added: "Violence of this type against others is unacceptable in our society and to our organization. We will continue to look into the incident while offering resources and providing support to Dante and his family to help them through this private matter."