Athletic Training and Sports Medicine

Crystal Lake South partners with Northwestern Medicine- McHenry County Orthopedics to provide an athletic trainer who will evaluate, treat, and rehabilitate athletic injuries, and provide immediate care and injury prevention to student athletes. The athletic trainer will be present at home events and travel to varsity football away games.

Medical Notes

If a student athlete is seen by a doctor for any injury, the school requires a note from the doctor stating that the athlete is cleared to return to sport participation. There are no exceptions. The athlete will not be allowed to participate in their sport until the school or athletic trainer has the note in possession.

Concussion Information

According to Illinois Public Act 99-245, if a student athlete is suspected of having concussion, the student athlete must be removed from play and must complete the 5-Day Return To Play Protocol. This protocol MUST be supervised by the school’s designated athletic trainer. The athlete will not be allowed to return to practice or competition until he or she has completed all aspects of the return to play protocol. More information on Public Act 99-245 can be found here.

Crystal Lake South Athletic Trainer

Erin O'Brien
Phone: (815) 455-3860 ext. 3214

Training Room Hours

2:00pm-6:30pm (depending on event coverage)
8:00am-12:00pm (depending on event coverage)

*subject to change*

The athletic trainer will cover most on-site practices unless coaches have not communicated schedule changes in a timely manner. The athletic trainer will be located at the most high-risk event unless called to another location by a coach or administrator.

Please note: This page contains links to documents that are in Adobe's PDF format.  If you have accessibility needs that make it difficult for you to access and / or interpret information in PDF format, please call 815-455-8500 or email, and we will be happy to assist you. 

Contact Us

Jason Bott
Athletic Director
Phone: (815) 455-3860 Ext. 3231

Paty Valdivia
Athletic Director Administrative Assistant
Phone: (815) 455-3860 Ext. 3257