The funds allocated to top-level sportsmen and women registered on a list mentioned in article L. 221-2 of this code, with a view to financing their professional training within the meaning of part six of the Labour Code, in the context of State-approved training courses, with a view to professional integration or conversion, are treated as professional expenses to be deducted from the basis of assessment for social security contributions. Actual deduction is subject to the production of supporting documents.