Well because this is health I am assuming they are referring to the health side of the sport. The concussion rate in the sport is super high, higher than most sports even with the padding and helmet protection. It is also a high contact sport so injuries are bound to happen.
I think this is D hope this helps
C. He said our goals and actions intended to address needs
to secrete a salty, watery fluid from the sweat glands of the skin; <span>sweat.</span>
Answer: Overload
Explanation: because he lifted heavier weights now he is in pain.