It sounds like you are asking about a real steer's condition. If you are concerned about your steer's health, you should consult a veterinarian. They can help you diagnose the problem and provide the best treatment options.
Here are some possible reasons why a steer's back ankle might pop:
* Injury: A sprain, strain, or fracture could be causing the popping.
* Joint problems: Conditions like arthritis or joint instability can lead to popping.
* Tendonitis: Inflammation of the tendons in the ankle could cause popping.
* Ligament problems: Damaged ligaments in the ankle might lead to popping.
Please remember, I am not a veterinarian. I cannot give you medical advice. If your steer is experiencing any issues, please reach out to a veterinarian for professional help.