Mesut Ozil is the latest Gunners star to break down this week with a hamstring injury.
Verheijen told the Mirror: "An injury could be bad luck but that is the exception to the rule. In contact sports occasionally there is an unlucky injury but most injuries are a result of overloading the body... doing the wrong workload at the wrong time or in the wrong sequence.
"Clearly something is going wrong. If you look at the law of the big numbers, something in the last ten years is going wrong. It's clearly incompetence but it's unconscious incompetence. The only way you can improve is if it's conscious incompetence, so you're aware of it.
"Then you can act. If you are in denial, you are blaming the outside world for the injuries and not looking in the mirror then you will stay incompetent.
"If it happens occasionally then this is a gut feeling. If it happens regularly, over 10-12 years, then coincidence is out of the question."
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