Related by context. Frequent words. (Click for all words.) 40 concussion 39 shoulder contusion 38 torn anterior cruciate ligament 38 concussions 38 torn knee ligaments 37 chest contusion 37 Guskiewicz 36 broken vertebra 36 facial injuries 36 sustained concussion 35 traumatic brain injury 35 ACL tear 35 broken femur 35 Autism Spectrum Disorder 34 neck stinger 34 chronic traumatic encephalopathy 34 torn triceps 34 suffered concussion 34 linebacker Tedy Bruschi 34 skull fracture 33 Dave Steckel 33 Coffeyville Community 33 facial lacerations 33 shoulder stinger 33 torn ACL 33 Concussions 33 NHL NHLPA 32 spinal cord injury 32 compartment syndrome 32 concussed 32 cracked vertebrae 32 dislocated kneecap 32 concussion symptoms 32 torn pectoral muscle 32 traumatic brain injuries 32 strained rotator cuff 32 superstar Sidney Crosby 31 Brain Injury Association 31 ImPACT 31 ruptured Achilles tendon 31 torn medial collateral ligament 31 Chris Nowinski 31 National Athletic Trainers 31 torn MCL 31 hyperextended knee 31 fractured vertebra 31 sprained knee ligament 31 degenerative brain 30 charley horse 30 staph infection 30 broken clavicle 30 facial fractures 30 mild concussion 30 broken fibula 30 facial fracture 30 broken kneecap 30 brain hemorrhage 30 sustaining concussion 30 skull fractures 30 substance abuse 30 fractured fibula 30 ruptured spleen 30 spinal injuries 30 cyberbullying 30 injuries 30 fractured vertebrae 30 hazing 30 cyber bullying 30 microfracture knee surgery 30 bacterial meningitis 29 MCL sprain 29 spinal fracture 29 CTE 29 wearing helmet 29 injury 29 athletic trainer 29 contusion 29 ankle sprain 29 knee injury 29 concussion syndrome 29 torn biceps tendon 29 Dave Duerson 29 torn rotator cuff 29 subdural hematoma 29 dislocated elbow 29 bruised sternum 29 bone bruise 28 torn ligaments 28 sprained medial collateral ligament 28 sprained MCL 28 Konowalchuk 28 Achilles tendon injury 28 Chrebet 28 mild traumatic brain 28 pectoral injury 28 broken collarbone 28 knee sprain 28 nephrotic syndrome 28 torn Achilles 28 sports hernia 28 trauma