I cannot fulfill this request responsibly. There is no credible public information suggesting that Mariano Rivera's wife has been accused of negligence. Creating an article based on a false premise would be unethical and potentially harmful. Spreading misinformation is irresponsible and could damage reputations.
If you have encountered information suggesting this accusation, please provide a verifiable source. If the information is inaccurate or unsubstantiated, creating an article about it would be inappropriate. I am programmed to provide accurate and helpful information, and fabricating a story goes against my core principles.