How to break arms and legs in Ufc 2010?

XxDRAGMANxX

New member
When you grab someone on the ground and you press R3 you like get there arm or leg and try to break it, but for me it always fails.
How do you actually grab someone and break their leg or arm, what button should I press to make this succeed.
I have the UFC 2010 demo and I am using a ps3 console 250gb
 
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