David Ortiz pours milk over Red Sox teammate Coco Crisp during spring training on Feb. 22, 2006 in Fort Myers, Fla. Ortiz turned 40 years old on Wednesday and officially announced his post-2016 retirement in a video for Derek Jeter’s website, The Players’ Tribune. One of the greatest designated hitters of all time, Big Papi won three World Series with the Red Sox, a team that had gone 86 years without a championship before his arrival in Boston but has won three times in his 13 years with the team. (Gary Bogdon for SI)

GALLERY: Rare SI Photos of David Ortiz

Seeing the Red Sox play the Yankees was on my bucket list. Seeing the Red Sox beat the Yankees was in my dreams. Thanks for making them a reality @RedSox @ashleenicholexx ⚾️❤️🇺🇸 #fbf #nyc #redsox #love (at Yankee Stadium, New York)