Eminem was originally attached to star but fell out when the film couldn’t get up and running.
Antoine Fuqua will direct the film from a script by Kurt Sutter.
The story follows a left-handed prizefighter who wins a title but suffers a tragedy soon after and must put his life back together to earn the respect of his young daughter.
Gyllenhaal is maintaining a strong balance of commercial and arthouse projects. He has already received praise for his role in Alcon’s “Prisoners,” as well as “Enemy,” which premiered in Toronto.
He is currently filming the indie thriller “Nightcrawler” and will follow that up with Working Title’s “Everest.” He is repped by WME.
TheWrap first reported the news.