The Yankees unveiled a plaque in Monument Park Wednesday to honor Nelson Mandela.
The ceremony took place before Wednesday night's game against the Cubs.
The plaque hangs next to a tribute to Jackie Robinson.
Among those attending were Mandela's family and Robinson's widow, Rachel.
Yankee captain Derek Jeter presented them with a replica of the plaque.
The plaque marks the late civil rights leader's historic trip to the old Yankee Stadium in 1990, just four months after being released from prison.
Mandela died last December at the age of 95.