From Jared Diamond at the Wall Street Journal on January 22, 2019:
Mariano Rivera made a lot of very good baseball players look very bad for a very long time. A total of 993 different hitters recorded at least one at-bat against Rivera during his 19-year major-league career with the New York Yankees. Close to two-thirds of them posted a batting average of .200 or worse against him, with nearly half failing to record a single hit off Rivera and his magical cut fastball.
Read the full article here (subscription required): https://www.wsj.com/articles/the-one-hitter-mariano-rivera-couldnt-get-out-11548168734
Originally published: January 23, 2019. Last Updated: January 23, 2019.