1 of 23Paul Drinkwater/NBC/NBCU Photo Bank via Getty Images
Michael Richards swings a golf club in Jerry's apartment during the 1991 episode "The Ex-Girlfriend." Richards' character Kramer was an avid golf fan throughout the show, but his most memorable golfing moment had to be the "hole in one" shot on the beach that would block a whale's blowhole.
2 of 23NBC/NBCU Photo Bank via Getty Images
Mets great Keith Hernandez made perhaps the most famous athlete cameo in television history when he appeared in 1992 as a new friend of Jerry Seinfeld and a love interest of Julia-Louis Dreyfus.
3 of 23Gary Null/NBC/NBCU Photo Bank via Getty Images
Buck Showalter, who managed the Yankees from 1992-95, interacts with Jason Alexander on the set of Seinfeld in 1994.
4 of 23Gary Null/NBC/NBCU Photo Bank via Getty Images
Former Yankee Danny Tartabull receives some batting tips from Jason Alexander during the episode "The Chaperone."
5 of 23Barry Slobin/NBCU Photo Bank via Getty Images
Bette Midler "made the long journey from Milan to Minsk" for her part in the fictional play Rochelle Rochelle, but Jason Alexander had other ideas in this classic 1995 episode.
6 of 23Barry Slobin/NBC/NBCU Photo Bank via Getty Images
During the episode "The Wink," Michael Richards promised a sick boy that Yankees outfielder Paul O'Neill would hit two home runs in a game. O'Neill accomplished the feat, but it was later overturned when his inside-the-park home run was changed to a triple and an error.
7 of 23Bill Kostroun/AP
Actor Patrick Warburton relives his role as crazed New Jersey Devils fan David Puddy at the team's 1995-96 home opener against the Florida Panthers.
8 of 23Alice S. Hall/NBC/NBCU Photo Bank via Getty Images
Yankees owner George Steinbrenner, who was famously voiced (though rarely seen) by Larry David, appears during a 1996 episode called "The Invitations."
9 of 23Joey Delvalle/NBCU Photo Bank via Getty Images
Michael Richards was king of his dojo in this 1996 episode, though he was roughly four times the age of all the other participants.
10 of 23Joseph Del Valle/NBC/NBCU Photo Bank via Getty Images
Bernie Williams and Derek Jeter were two of baseball's top hitters when they appeared in the 1996 episode "The Abstinence," but that didn't stop Jason Alexander from offering the duo some helpful batting advice.
11 of 23AP
USA Basketball Dream Team member Scottie Pippen and Jason Alexander as "Pretzel Boy" pose during filming of the Rold Gold Olympics pretzel commercial series in 1996.
12 of 23Stan Honda/AFP/Getty Images
Wayne Knight, who played Newman on Seinfeld, shakes hands with Yankees right fielder Paul O'Neill before throwing out the first pitch of a game against the Texas Rangers on May 13, 1998 at Yankee Stadium.
13 of 23Bill Sikes/AP
Sabres goalie Dominik Hasek, pictured here during practice for the 1998 Stanley Cup Playoffs, earned the nickname "Kramer" because his Buffalo teammates felt he resembled Seinfeld's famous neighbor.
14 of 23Ed Reinke/AP
Jerry Seinfeld shares a laugh with Mets pitcher John Franco before Game 6 of the 1999 National League Championship Series in Atlanta.
15 of 23Chuck Solomon
Jerry Seinfeld poses with Mets catcher Mike Piazza after throwing out the first pitch of a Subway Series game against the New York Yankees on May 22, 2005 at Shea Stadium.
16 of 23Paul Drinkwater/NBCU Photo Bank via Getty Images
Julia Louis-Dreyfus sits alongside Jimmie Johnson during The Tonight Show with Jay Leno on Nov. 6, 2008.
17 of 23Chuck Solomon
Mets relief pitcher Tim Byrdak made headlines in June 2012 when he brought a live chicken (named "Little Jerry Seinfeld") to a game against the Yankees. Byrdak was having fun with teammate and closer Frank Francisco, who created a stir by calling the crosstown rivals "chickens" before the annual subway series between the in-state rivals.
18 of 23Noel Vasquez/Getty Images
Seinfeld creator Larry David reacts during Game One of the 2014 NHL Stanley Cup Final between the New York Rangers and Los Angeles King on June 4, 2014 at the Staples Center in LA.
19 of 23Bill Menzel/Brooklyn Cyclones
Larry Thomas, who played "The Soup Nazi" on Seinfeld, greets customers before the Brooklyn Cyclones game on "Seinfeld Night" in July 2014.
20 of 23Bill Menzel/Brooklyn Cyclones
Players in puffy shirts for batting practice before the Brooklyn Cyclones game on "Seinfeld Night" in July 2014.
21 of 23Bill Menzel/Brooklyn Cyclones
The 'Elaine Dance' competition heats up before the Brooklyn Cyclones game on "Seinfeld Night" in July 2014.
22 of 23Alexander Tamargo/Getty Images for Alfalit International, Inc
John O'Hurley, who played J. Peterman on Seinfeld, poses with Alex Rodriguez and Maksim Chmerkovskiy at Alifat International, Inc.'s Annual Global Literacy Dinner on Sept. 27, 2014 in Miami.
23 of 23James Devaney/GC Images
Jerry Seinfeld and his family sit alongside Mets pitcher Matt Harvey during a game between the New York Knicks and Golden State Warriors on Jan. 31, 2016 at Madison Square Garden in New York City.
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