On September 28, 1996, Jorge Posada, Mariano Rivera, Derek Jeter, and Andy Pettitte played in the same MLB game for the first time. On September 28, 2014, exactly 18 years later, Derek Jeter played the final game of his career. With that, every member of the legendary Core Four is retired.
"Jeter says that he wants to own a team one day. One day he will. Me, Jorge, and Andy will be part of that." - Mariano Rivera