International employment contract between a football club and a Brazilian player. Possibility of adjudicating the termination of an employment contract through arbitration. "Although the substantive matter concerns individual labor law, the arbitration proceedings addressed purely patrimonial issues arising from the early termination of the employment contract by the respondent, which resulted in the application of the termination penalty. In other words, there was no waiver of a labor right (which is non-waivable), but merely the application of a termination penalty set forth in a clause provided for in the contract, which authorized the use of arbitration":