If you coach during a workout player suffered a knee injury What do you do?

First aid action such as spray drug then taken to the hospital and make an ray image of him

Giving him full care he need and stand beside him until i make sure he is ok 

let him lying down, then call for help.

i took him to hospital

1- put ice on the knee

2-move the leg by slowly

3- talking with the player about if feel pain when you move his leg

4- if no pain just put spray drug on the knee and walking for few minutes

5 if his have pain, left it on the floor just put the ice on the knee with drug spray and call the ambulance

Ensure that he/she receive the effective medical treatment and continue the workout session with his/her replacement.

At first diagnosis by X-ray. Then analgesic and rest of the local part by long leg plaster and further treatment according to the injury.

generally pull them out of training; apply cold compression and supportive bandage, afford walking aid and assess once acute pain phase has passed; usually within1 hr.

you have to call immdiatly for help if

• The knee or leg bones look deformed.
• The person can't bear weight on the leg.
• The pain is extreme.
• There is immediate swelling, tingling, or numbness below the knee.

if is just truma you can Control Swelling by

Use the RICE method:

• Rest the knee.

• Ice the area.

• Compress with a wrap or elastic sleeve.

• Elevate the knee as much as possible.

  Do not move the infected man and trying to figure out the extent of the injury during the field 

observation of the presence or  tumor or bleeding in case of bleeding should stop 

the bleeding and put ice packs and raise the knee until they are infected access to

doctor

Pain reduction and comfortable position...