Meet Our Instructors

  • Sensei Maureen Browne

    Owner, Aikido

    Maureen Browne began estudying DanZan Ryu Jujitsu at 16, and trained in Aikido and Kodokan Judo as a student at NIU. She continued Aikido training at the Midwest Aikido Center and Aikikai Hombu Dojo in Tokyo, where she received her Shodan from Kisshomaru Ueshiba. Maureen and her husband, John Gussman, founded the Fox Valley Judo and Jujitsu Club in 1986, and later established the Martial Arts Training Service, where she teaches Aikido and founded the Fox Valley Aikikai, affiliated with T. K. Chiba Shihan. Maureen holds the rank of 8th Dan Professor in DanZan Ryu Jujitsu and 6th Dan Shihan in Aikido, and has a Masters Degree in Counseling Psychology.

  • Sensei Bonney Pruzaniec

    Judo

    Bonnie Pruzaniec holds the rank of Sandan in Kodokan Judo and is a USA Judo certified National Coach. Bonnie also trains in Brazilian Jiu-jitsu at Gracie Barra in Des Plaines. Bonnie is a seasoned Judo competitor having fought at 48 kilos on both National and International levels. Bonnie began her Judo training at the age of ten at Montclair YMCA with Bob Larsen and also trained at the Oak Park YMCA with Ernie Hauser. It was at the Oak Park YMCA that Bonnie met John Gussman, and that began their life long Judo friendship. It was John's wish that Bonnie take over the coaching for Fox Valley Judo after his passing.

  • Michael Hakmin Lee

    Judo

    Michael has been training in judo along side his three boys, Payton, Parker, and Preston, for over a decade and cross-trains in no-gi BJJ. He was awarded the rank of Shodan in Kodokan judo under Sensei John Gussman in 2020 and is a USA Judo certified National Coach. Outside of the dojo, Michael works as a professor at Wheaton College and volunteers as a travel baseball coach.

  • Nathalie Daux

    Aikido - Fukushidoin Children’s Instructor

  • Alex Macridin

    Judo

  • Phillip Kosovrasti

    Judo

    Philip Kosovrasti has been practicing Judo for fourteen years. He is a cancer survivor who has been cancer-free for twenty-four years. He received his first-degree black belt in 2019 from Sensei John Gussman. Philip coaches children on falling, pinning, and standing techniques. What he loves about Judo is that anyone can practice it no matter their size. Outside of the dojo, he is studying to become an educator and helps his parents with his brothers who have ASD (Autism Spectrum Disorder).

  • Armando Sanders

    Judo

  • Kevin Arriola

    Judo

  • Sergey Tsgalnitsky

    Aikido - Shidoin

    Sergey began his Aikido training in 1998 at the Martial Arts Training Service. Sergey joined the MATS Uchi Deshi Program in 2002. As a member of the Uchi Deshi program, Sergey trained intensively 30+ hours per month and assisted with teaching the Children’s Aikido Program. Sergey currently holds the rank of 5th Dan and Shidoin (Licensed Instructor) in Aikido and assists with teaching the Aikido program.

  • Jon DeGuzman

    Aikido - Fukushidoin

  • Magnus Meier

    Aikido - Fukushidoin

    Magnus was born in Germany, lived in Japan for several years and moved to the US in 2003. He trained in Judo as a child, Iaido for a couple of years in Germany and Aikido at MATS since 2007. Magnus is both a teacher and mentor at MATS. He works with beginners to understand and internalize concepts and helps advanced practitioners to make the techniques work for them. He coaches more advanced students to advance beyond the formalized character taught to beginners. Outside of the dojo, Magnus is Global Head for Wholesale Distribution at SAP and also Senior Lecturer at Texas A&M in the Industrial Distribution Masters Program.

  • Yumiko Takano

    Aikido - Fukushidoin