This is a pretty interesting topic that you chose. However, it is an opinion-written piece. It is essentially impossible to fact-check an opinion. Yes, the New York Times is a very trustworthy source, but to say that Rafael Nadal is retiring at the "right" time, to me, is a bit unhinged. I don't mean to tear you down because this is a very good informational piece. Next time, I would say choose a topic that allows for more ability to be fact-checked.