Related by context. Frequent words. (Click for all words.) 44 hamstring injury 43 thigh injury 41 calf strain 41 knee injury 41 Achilles injury 41 hamstring strain 40 ankle injury 40 calf injury 40 sprained ankle 40 groin strain 40 groin injury 39 rib injury 38 strained hamstring 38 sprained knee 37 viral infection 37 dislocated shoulder 35 injury 35 stress fracture 34 ankle sprain 34 hamstring 34 abdominal strain 33 broken jaw 32 groin 31 sprained 31 bacterial infection 31 sore shoulder 31 mumps 30 nagging injuries 30 ankle 30 ligament damage 30 sidelined 30 illness 30 Achilles 30 concussion 29 broken collarbone 29 shin 29 knee surgery 29 quadriceps 29 torn ACL 29 spasms 29 bone bruise 29 Achilles tendon 29 virus 29 flu virus 28 highly contagious 28 infection 27 torn ligament 27 bronchitis 27 knee 27 Lyme disease 27 soreness 27 whooping cough 26 H#N# virus 26 sprain 26 dengue fever 26 influenza 26 cramps 26 tendinitis 25 ailment 25 staph infection 25 bird flu 25 tuberculosis 25 Influenza 24 avian flu 24 sickness 24 spasm 24 encephalitis 24 Swine flu 24 flu 24 swine flu 23 meningitis 23 cramp 23 E. coli 23 swine flu virus 22 Flu 22 measles 22 pneumonia 22 tiredness 22 bird flu virus 22 bug 22 MRSA 21 H#N# 20 illnesses 20 colds 20 jet lag 19 malady 19 H#N# flu 18 unwell 18 dehydration 18 hepatitis 18 heat exhaustion 18 swine flu outbreak 18 sore 17 Swine Flu 17 fever 16 sore throat 16 hangover 15 dizziness 14 diarrhea 13 vomiting 11 chest pains