Technical & Front Office Staff

This will be Carlson’s third season with the Triumph. Carlson is the Head Coach and Technical Director for the Greenville Liberty. She led the team to the USL W Semifinals, a South Atlantic division title and a 6-0 home record in the club’s inaugural campaign. Carlson leads the day-to-day operations of the team and is involved in the club’s youth programming, fan development and community relations initiatives for the Greenville Liberty. She is also an inaugural member of the USL Pro Preseason Residency Program. Carlson served as Director of Operations for women’s soccer at Clemson University from 2018-2021. She holds a US Soccer Federation ‘A’ license and was the head coach of the women’s soccer programs at Anderson University, Jacksonville State and the Virginia Military Institute, where she built the women’s soccer program from the ground up. Carlson worked as a volunteer assistant coach for the Clemson women’s soccer team from 2014 to 2016.

Mattern is on board as the Assistant and Sports Performance Coach of the Greenville Liberty. Mattern has been in the industry since her playing days at the University of South Carolina. From 2015-2023, Mattern was the Co-founder and COO of 11.11 Training, a soccer development facility for aspiring college athletes. She brings years of experience competing in professional league across the world, including the Netherlands’ FC Twente, Sweden’s Mallbacken IF and the Atlanta Beat in the U.S. Prior to her professional journey, she was a 4-year starter at USC, 2-year team captain, First-team All-American (first in program history), and 2007 SEC Defensive Player of the Year. Mattern’s ties with the Gamecocks remain strong, as she was inducted into the University’s Athletic Hall of Fame in 2022, only the second women’s soccer player in program history.

Vinson returns as the Athletic Trainer for the Greenville Liberty. Vinson has been providing athletes with recovery and preventative care since 2017 and is the owner of Greenville Athletic Training Company. In addition to helping with the first team, Vinson also assists with club clinics, the USL Academy Cup and high schools across the Upstate including Southside, Travelers Rest, Berea and Northwest Middle. Prior to starting her own practice, Vinson previously covered sports for Prisma Health and Drayer Physical Therapy. She is BOC Certified, BLS certified by the American Heart Association, American Red Cross CPR/First Aid certified and a member of the National Association for Athletic Trainers.