Jeff “Big Frog” Curran is a fifth-degree Brazilian jiu-jitsu black belt under Pedro Sauer and the founder, head instructor and co-owner of Team Curran in Crystal Lake, Illinois. He opened his first academy in 1997 and teaches adult and youth jiu-jitsu.
His professional mixed martial arts career included competition in the UFC, WEC, PRIDE, Bellator and Strikeforce. He also competed at the 2009 ADCC. His teaching emphasizes fundamentals and structured progression, with gi and no-gi training offered at Team Curran.
Jeff also shares his instruction through Team Curran TV and founded the Jeff Curran Invitational. Through Big Frog Nation, he brings together his instructional work, academy network and jiu-jitsu retreats.