Athletic Performance


Visiting Team Letter

Summer Program



Athletic Performance Staff

James Williams, Head Athletic Trainer

Through the outstanding support of the Gwinnett Medical Center and its Sports Medicine team, Athletic Training services for the Grizzlies are provided by James Williams, ATC, and his staff. Williams is a certified athletic trainer (ATC) who oversees daily operations in the athletic training room, provides initial evaluations for injuries, designs therapeutic exercise programs, plans methods to help prevent injuries and implements daily treatment protocols for the athletes.

Williams holds 16 years of experience in the athletic training field. He most recently served as an athletic trainer/DME coordinator at Sports Medicine South prior to joining Grizzly Athletics. He also worked in the NFL as an assistant athletic trainer for the Atlanta Falcons (2010) and the Cleveland Browns (2006-2009).

Shira Williams, Assistant Athletic Trainer

Thanks to a partnership with Gwinnett Medical Center, Shira Williams will be entering her fifth year with Grizzly Athletics in 2016-17. As the assistant athletic trainer, Shira is primarily responsible for attending to the Grizzly Softball program, while assisting with GGC's five other programs. She's also tasked with coordinating athletic training student interns and the everyday operations in the athletic training room.

A native Mobile, Ala., Williams joined GGC after graduating from the University of Mobile in May 2012. While in school, she led the Student Athletic Training Education Program and gained experience while working with the men's and women's basketball team as well as with an indoor football team.


Joe Mosher, Strength & Conditioning Coach and Assistant Athletic Trainer

Through GGC's partnership with the Gwinnett Medical Center, Mosher will oversee all aspects of the Grizzlies' weight room, including designing and implementing strength and conditioning programs for all six of GGC's athletic teams.  He will also assist with daily operations of the athletic training room.  Mosher joins the Grizzlies after spending the last five years with the New York University Department of Athletics, Intramurals, and Recreation.  There, he served as an Athletic Trainer for five years and as the Head Strength and Conditioning Coach for four.  Prior to his arrival at NYU in December 2011, Mosher spent three years as the Assistant Athletic Trainer at Bridgewater State (Mass.).

In addition to being a Certified Athletic Trainer (ATC), Mosher is also an NSCA Certified Strength and Conditioning Specialist (CSCS) and a USA Weightlifting Level 1 Sports Performance Coach.




Team Physicians

Dr. Gary Levengood

Gary A. Levengood, M.D., is the Founder and President of Sports Medicine South, LLC.  Board certified in Orthopaedic Surgery and Sports Medicine by the American Board of Orthopedic Surgeons, Dr. Levengood completed a Sports Medicine fellowship at The Hughston Clinic in Columbus, Georgia, where he specialized in Arthroscopic Surgery and Sports Medicine.  He also holds membership in the American Academy of Orthopedic Surgeons.

Dr. Levengood's interest in sports medicine began as an active participant and coach. A former professional soccer player with the Georgia Generals, he holds a United States Soccer Federation B coaching license and has coached at the youth, amateur and collegiate levels. Dr. Gary Levengood is the current Team Physician of the Georgia Force, a Gwinnett arena football team and the Atlanta Silverbacks Soccer team; he is also the Medical Director for the Georgia State Soccer Association's Olympic Development program and is Chief of Orthopedics at Gwinnett Medical Center. Formerly, he served as the Team Physician for the Atlanta Silverbacks from 2000 - 2007.

Dr. Levengood's specialties include arthroscopic surgery, sports medicine, and joint arthroplasty. In addition, he supports the local community by serving as Team Physician for Brookwood High School, Orthopedic Consultant for Loganville High School, and Medical Director of Gwinnett Gymnastics Center. He has traveled internationally with the U-17 national men's soccer team as their physician.


► Dr. Manfred Sandler

Dr. Manfred Sandler is currently a partner at Cardiovascular Group P.C. Since 1994, he has served in many leadership roles within the Gwinnett Hospital System. He has embraced the Gwinnett community and currently serves as Vice-Chairman of the Board of the Gwinnett Hospital System and on the executive Board of the Gwinnett Chamber of Commerce.

It was during Sandler's initial 10 years of practicing Cardiology in the county that he along with his colleagues realized the need for a full service cardiac facility in Gwinnett County. This would save countless lives and provide treatment to thousands of Gwinnettians in the future. Sandler embraced this challenge, and he served as the physician champion leading Gwinnett Medical Center’s effort to attain the certificate of need for Open Heart services. He has has and continues to volunteer his time doing the annual cardiac physicals for the Norcross High school, and in 2008, he accepted the chairmanship of the Gwinnett Hospital Foundation. Through the foundation he initiated a Physician Partner’s Organization which resulted in more than 150 doctors’ financial participation in the philanthropic arm of the hospital system. He continues to lead the task force for the implementation of full cardiac services at Gwinnett Medical Center.

In 2009, Sandler was selected as Gwinnett Citizen of the year for his contribution to the community and commitment to bringing an open heart surgical program to Gwinnett Medical Center. He has received public service awards from Northeast Georgia Boy Scouts, Gwinnett Medical Center Foundation and the Gwinnett Chamber of Commerce. Since 2006, he has been recognized in the top cardiologists in Atlanta, and in 2011, he was voted by his peers and recognized  by US News and World Report in the top 1% of doctors in the nation.

► Dr. Adam Shunk

Dr. Adam Shunk is a licensed psychologist who specializes in clinical neuropsychology and sports psychology at Gwinnett Medical Center-Duluth. He is the consulting sports psychologist at Georgia Gwinnett College and assists athletes with mental training and clinical psychology issues. Prior to joining GMC-Duluth, Dr. Shunk was employed at St. Vincent Hospital/Sport Performance Center in Indianapolis, Indiana where he provided clinical neuropsychology and sports psychology services for a wide range of clinical and athlete populations.  Adam was the consulting sports psychologist for Purdue University’s athletic department for 6 years (2007-2013) and has consulted with other university and sports organizations.  

He has specialized training in clinical sport psychology and performance psychology for athletes at the amateur, collegiate, Olympic, and professional levels of competition. Adam serves a variety of roles assisting competitive athletes that range from individual counseling services for athletes with clinical and mental health issues to performance enhancement/mental training skills to help athletes gain a competitive advantage. Athletically, Adam is a former elite athlete who competed professionally as a track and field athlete for NIKE and was an NCAA champion and USA champion in the High Jump.

Dr. Shunk received his BS from the University of North Carolina at Chapel Hill and completed his graduate training at Ball State University. Adam completed a one year internship and two-year post-doctorate residency at St Vincent Hospital/Indiana Neuroscience Institute where he split his time training in neuropsychology and sport and performance psychology. Adam is a native of Muncie, Indiana and currently lives in Atlanta with his wife Patricia and their three children.