Sifu Collin Lieberman (Centerline Martial Arts Director / Head Instructor)

Jeet Kune Do Certification
Sifu Collin has been practicing Jun Fan Gung Fu / Jeet Kune Do for more than 12 years. He holds the rank of Black Sash and is a Full Instructor in Jeet Kune Do under Sifu Raffi A. Derderian Jr. (Derderian Academy of Martial Arts).  He continues to develop his JKD by regularly training with martial artists from different disciplines and researching various styles. Sifu has formal training in the arts of Jun Fan Gung Fu, Wing Chun, Filipino Kali, Muay Thai, Brazilian Jiu Jitsu, and Taiji Quan.  His teaching experience includes Jeet Kune Do groups and seminars in Canada, the University of Rhode Island, Wesleyan, Ithaca, and across Connecticut.  Collin@centerlinejkd.com

Sifu Raffi A. Derderian Jr.
Sifu Raffi's Bio
Sifu Raffi's Instructors
JKD and Kali

Sifu Kevin Seaman
JKD and Kali

Sifu Dan Inosanto

Sijo Bruce Lee

Our Martial Arts Family

The Middletown Centerline JKD Gang

Sifu Collin and DeRon

Sifu Collin with Sifu Raffi, a.k.a. "The Big Boss"

Sifu Collin with Sifu Steve from Albany

Sifu Collin with Sifu Kevin Seaman

Sifu Todd and Sifu Raffi