Team Curran Jiu-Jitsu of DeKalb County is owned by longtime Jeff Curran (UFC, Pride, WEC vet) student and BJJ brown belt Eric Hartwig. Eric has been managing and teaching Jiu-jitsu at Team Curran MMA in Crystal Lake for the past 5 1/2 years. He's trained with some of the best Jiu-jitsu and MMA instructors and competitors in the world including: Pedro Sauer, Jeff "Big Frog" Curran, Bart Palaszewski, Pat Curran, Luis Heredia, Eduardo De Lima, Marcelo Garcia, and Ryan Hall.