Cohen's sports-related activities have primarily focused on baseball and golf. As already covered in many comments, he purchased the New York Mets in 2020 and has invested heavily in the team.
Additionally, he acquired a team in TGL, a tech-infused golf league founded by Tiger Woods and Rory McIlroy (was due to begin play in January 2024 .). His team (New York Golf Club) includes Rickie Fowler, Xander Schauffele, Matt Fitzpatrick, and investors Derek Jeter and CC Sabathia, (both former NYY Baseball), John McEnroe, Michael Strahan and Eli Manning (NFL), and Jimmy Fallon.
Incidentally the NYGC club finished second in the TGL this season.
Regarding soccer, Cohen has been involved in negotiations related to the development of a soccer stadium for New York City FC near Citi Field. However, his involvement appears to be driven by broader development interests, including a proposed $8 billion Metropolitan Park project that encompasses a casino, hotel, and other amenities . There is no indication that his participation in these discussions stems from a personal passion for football.
In summary, while Steve Cohen is actively engaged in various sports ventures, there is no current information to suggest that he has a personal interest in football.
If anyone is interested in the "insider trading issue" then here is a you tube video that covers it in some depth - but it is almost an hour long and three years old - I will post a separate link.