Roger McDowell is currently the pitching coach for the Atlanta Braves, but before he held that role he was a reliever for the New York Mets, which led to his guest appearance on one the most famous episodes of Seinfeld, "The Boyfriend."
In the two-part episode Kramer and Newman accuse Mets first baseman Keith Hernandez of spitting on them after a game at Shea Stadium, but it is later revealed it was actually an angry McDowell.
Despite the pitcher's brief appearance, he told an Atlanta radio show he makes $13.52 every time it airs.
With royalties like that, who needs a paycheck?
GALLERY: SEINFELD AND SPORTS
Seinfeld and Sports
Seinfeld was just voted the nation's funniest all-time sitcom, just edging out The Honeymooners , according to a survey commissioned by 60 Minutes and Vanity Fair . The show, which was famously "about nothing," often dipped into the world of sports, particularly in New York. In honor of Jerry, George, Elaine, Kramer and the rest of the gang, SI looks at Seinfeld and sports.
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.
Buck Showalter, who managed the Yankees from 1992-95, interacts with Jason Alexander on the set of Seinfeld in 1994.
Former Yankee Danny Tartabull receives some batting tips from Jason Alexander during the episode The Chaperone.
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.
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 the inside-the-park home run was changed to a triple and an error.
Actor Patrick Warburton relives his role as a crazed New Jersey Devils fan at the 1995-96 home opener against the Panthers.
Derek Jeter and Bernie Williams were two of baseball's top hitters when they appeared on a 1996 episode ( The Abstinence), but that didn't stop Jason Alexander from offering the duo some helpful batting advice.
Michael Richards was king of his dojo in this 1996 episode, though he was roughly four times the age of all the other participants.
Yankees owner George Steinbrenner, who was famously voiced (though rarely seen) by Larry David, appears during a 1996 episode called The Invitations.
Sabres goalie Dominik Hasek, pictured here during the 1998 Stanley Cup Playoffs earned the nickname "Kramer" because his Buffalo teammates felt he resembled Seinfeld's famous neighbor.
Wayne Knight (aka - Newman) throws out the first pitch at Yankee Stadium.
Jerry Seinfeld converses with Mets pitcher John Franco before Game 6 of the 1999 National League Championship Series in Atlanta.
Longtime sports fan Jerry Seinfeld spends time in New York's WFAN studios.
Seinfeld shares a laugh with Magic Johnson during a 2001 Heat-Knicks game at Madison Square Garden.
Seinfeld throws out the first pitch of the 2005 Subway Series while wearing the jersey of lovable Mets loser Marv Throneberry.
Seinfeld shakes hands with former Mets pitcher Pedro Martinez before the 2005 Subway Series.
Jerry Seinfeld and Larry David, the co-creaters Seinfeld , converse during a night match at the 2007 US Open Tennis Championships.
John O'Hurley, who played J. Peterman on Seinfeld , watches his shot during the Champions Tour Encompass Insurance Pro-Am at TPC Tampa Bay in Lutz, Florida.
Mets relief pitcher Tim Byrdak made headlines in June 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.
- Brendan Maloy