Mariano Rivera made a return to the Yankees' Old-Timer's Day event. He had previously suffered an injury at the event, tearing an Achilles tendon while playing in the outfield. Rivera participated in an exhibition game, throwing pitches to several batters.

Rivera's performance included facing four batters and throwing 11 pitches. He also took an at-bat during the event. The 56-year-old's pitches were still effective, according to his assessment.

Further details about Mariano Rivera's appearance at the Yankees' Old-Timer's Day are available from the source, including more information about the event and his participation.