As a former outstanding Trinity athlete, Mr. Kindler knows the sports world of Trinity well. In high school, Mr. Kindler was one of the top area scorers, with 1627 career points, a Patriot News Big 15 selection, and on the PIAA All State second team. After graduating from Trinity, Mr. Kindler went on to play Division 1 basketball for St. Joseph University, where he studied theology and secondary education. He also received his Masters in theology from Villanova.
Mr. Kindler has experience working closely with high schoolers both in the classroom, as a former civics teacher and head basketball coach. Mr. Kindler is dedicated to the mission of our school and faith, with extensive volunteer experience with a variety of populations, from children to maximum security inmates.
B.A., Theology, St. Joseph University
M.S., Secondary Education, St. Joseph University
M.A., Theology, Villanova University
Terrence Mull has been around Trinity High School athletics most of his life. As a Trinity graduate himself (2002), and the sibling of four Trinity graduates, the Trinity tradition in his family is longstanding. While a Trinity student, Mr. Mull played five sports and received a varsity letter in four. After graduating from Slippery Rock in 2009, he joined the Trinity staff as a teacher, coach, and assistant athletic director. Currently, Mr. Mull teaches health and physical education and coaches girls soccer and baseball, in addition to his Assistant Athletic Director duties. He also officiates soccer at the collegiate and professional level.
B.S., Sports Management, Misericordia University
B.S., Health & Physical Education, Slippery Rock University
M.Ed., Educational Leadership, Shippensburg University
In addition to being one of the most successful basketball coaches in the area, Larry Kostelac Jr. also works to further the athletic programming of the school as the Director of Athletic Advancement. Coach Kostelac has long been ingrained in the culture of Trinity: his father was Dean of Students for many years, he’s an alumnus, and his children attended the school. His devotion to Trinity extends to all students and all sporting programs at the school.
Stephanie Arnold joined Trinity’s staff as head Athletic Trainer in 2020, adding her work at Trinity to employment at Select Medical Physical Therapy. Ms. Arnold has experience working with concussions, and is certified in CPR/AED for Professional Rescuers and Health Care Providers, and in Emergency Management Institute Certifications. Her duties include providing quality athletic training service at home athletic events and away football games, coordinating rehabilitation for all student-athletes, and providing educational tools for injury prevention and awareness.
B.S., Athletic Training, Eastern University
Justin Assadinia works with all our student-athletes, helping them to develop safe and effective strength and conditioning habits. His work with our students makes them stronger and better athletes, while also helping them to prevent injuries while training and competing. The knowledge and habits that students develop through their work with Justin will serve them throughout their lives. Justin has a degree in kinesiology from Penn State and excelled in Division 1 Rugby while earning his degree.
Create a legacy for yourself, your loved ones, your team or your class with an engraved brick placed in the walkway to Trinity’s COBO field. Bricks cost $50, and bricks engraved with a shamrock cost $100. By purchasing a brick, you give a lasting gift and help the school as well. The brick walkway helps to fund continued improvements on COBO Field.
Promote your business and support Trinity with our Community Alliance. With opportunities to reach Trinity fans at the field, on the court, through social media, and in our newsletters to current families and alumni, our reach is wide! Join the program here.
Trinity High School takes seriously the physical, emotional and academic consequences of concussions. We strongly encourage students who may have sustained a concussion to see a physician who specializes in treatment of concussions and head trauma and we work with those physicians to help students fully recover so that they may not only return to play, but fully access their academic course of study.