The Wisconsin Warriors is the main antagonist gang in Sibling Rivalries. They also make a cameo in Sibling Rivalries: Salvador Real's Adventures (circa 2012). The Wisconsin Warriors is a football team lead by Giovanni Ancelotti. Even though it's a youth football team, Anthony Nicholas Gonzales says it's like a gang. The Wisconsin Warriors are rivals of the Green Bay Packers youth football team (Gerry's team).
The football team seems to have dissolved by the events of Sibling Rivalries: The Next Chapter, as it no longer appears.
- Giovanni Ancelotti (leader/team captain since 2011)
- James Johnson (member since 2012, wide reciever)
- Joel Gonzales (member since 2013, position unknown)
- Tony Gonzales (member 2012-2013, possibly former wide reciever)
- Marco Johnson (unknown when he joined the team; position unknown)
- Trevor Johnson (unknown when he joined the team; position unknown)
- The Wisconsin Warriors is similar to the Angels of Death Motorcycle Club in the HD Universe of Grand Theft Auto. They are rivals of the main protagonist gang (Both McReary Family and Green Bay Packers in SR, and The Lost Motorcycle Club in The Lost and Damned).
- The Wisconsin Warriors logo is similar to the WWE logo.
- Technically, the Wisconsin Warriors won the game in "The Big Trade-Off", as Packie was not calling out plays, which is an ultimate error in football. Also, Angel Chacon yelled "Hut!", even though only the quarterback says that (Packie in this case).
- In Sibling Rivalries: Salvador Real's Adventures, the Wisconsin Warriors make a cameo at a football game Salvador and Eduardo watch, which is weird because the Wisconsin Warriors is based in Wisconsin. It is unknown why would they be playing in Canada.
- Marco is so far the only player to have a visor on his helment.