A contact injury, such as a direct blow to the medial side (inside of knee), or a noncontact injury, such as a hyperextension stress. It is also commonly associated with an ACL tear which occurs with a high level of force and sports injury.
These types of legal fees are deductible as a business-related expense. You can deduct legal expenses incurred in your attempts to produce or collect taxable income as well as legal fees you pay in connection with the determination, collection, or refund of any tax.
Whether a legal expense is deductible generally depends on why the expense was incurred. If the legal expense arises from an event that would be personal in nature it is not deductible. For example, legal fees paid in connection with a divorce are not deductible.