Which Yankee was Jorge Posada's best man in his wedding?

Derek Jeter was the Yankee who served as Jorge Posada’s best man at his wedding. The two were longtime New York Yankees teammates and close friends during one of the franchise’s most successful eras.

Posada married Laura Mendez on January 21, 2000. Jeter stood beside him as best man, a detail that reflects their relationship beyond the clubhouse. Both players joined the Yankees organization as highly regarded prospects and became key members of the team’s championship core.

Jeter played shortstop, while Posada became the Yankees’ primary catcher. Together they won five World Series championships: 1996, 1998, 1999, 2000, and 2009. Their careers overlapped for nearly two decades, and both were known for their leadership and consistency in postseason play.

The question can be tricky because many famous Yankees were close to Posada, including Mariano Rivera and Bernie Williams. However, the specific wedding detail identifies Jeter. Posada later described Jeter as a trusted friend, and Jeter remained connected to him after both players retired.