Murdoch uses a well placed knee in the back to keep the boy on the mat while twisting his arm.

Murdoch then uses a foot in the back to hold the boy down while continuing to twist that arm and punish the shoulder.

You can turn your head boy, but that is about the only movement you can make.

Murdoch again drops his weight on the boy's shoulder and rubs his upper arm back and forth across the shoulder as he tries to make this boy scream. This rookie should swallow his pride and give up.