Derek Jeter is nearly halfway to fielding his own baseball team.
Jeter, a five-time World Series champion and Hall of Famer, and his wife Hannah announced the birth of their fourth child -- and first son -- in an Instagram post on Monday.
Jeter, 48, wrote that Kaius Green Jeter was born on Friday, People reported.
“Welcome to the world lil man!!!@hannahbjeter,” Derek Jeter wrote in his Instagram caption, adding in his social media biography that he is a “Sleep-deprived father of four.”
The baby was born on Hannah Jeter’s 33rd birthday.
Derek Jeter, the Yankees shortstop known as “The Captain” who was elected to the Hall of Fame in 2020, married Hannah Davis in July 2016, USA Today reported. The couple’s first child, Bella Raine, was born in August 2017. A second daughter, Story Grey, was born in January 2019, while River Rose was born in December 2021, according to the newspaper.
Derek Jeter though the years 27 Apr 1996: Derek Jeter #2 of the New York Yankees swings during the game against the Minnesota Twins at the Yankee Stadium in Bronx, New York. The Twins defeated the Yankees 4-3. (Al Bello/Getty Images)
Derek Jeter though the years 23 May 1996: Shortstop Derek Jeter of the New York Yankees stands on the field during a game against the Oakland Athletics at Yankee Stadium in Bronx, New York. The Yankees won the game 4-3. (Al Bello/Getty Images)
Derek Jeter though the years 21 Oct 1996: Shortstop Derek Jeter #2 of the New York Yankees leaps over Andruw Jones #25 of the Atlanta Braves after forcing him out to turn a double play in the second inning of game two of the World Series at Yankee Stadium in New York, New York. (Doug Pensinger/Getty Images)
Derek Jeter though the years 24 Oct 1996: Shortstop Derek Jeter of the New York Yankees jumps over a sliding first basemen Fred McGriff of the Atlanta Braves during game five of the World Series at Fulton County Stadium in Atlanta, Georgia. The Yankees won the game 1 - 0. (Doug Pensinger/Getty Images)
Derek Jeter though the years Derek Jeter of the New York Yankees in action during a game against the Anaheim Angels at Shea Stadium in the Bronx, New York. The Yankees defeated the Angels 6-3. Mandatory Credit: Steve Moore /Allsport (Steve Moore/Getty Images)
Derek Jeter though the years 31 May 1998: Portrait of Derek Jeter #2 of the New York Yankees during a game against the Boston Red Sox at Yankee Stadium in the Bronx, New York. The Red Sox defeated the Yankees 13-7. Mandatory Credit: David Seelig /Allsport (David Seelig/Getty Images)
Derek Jeter though the years 29 Sep 1998: Derek Jeter #2 of the New York Yankees dives for a ball during game one of the American League Divisional Series against the Texas Rangers at the Yankee Stadium in the Bronx, New York. The Yankees defeated the Rangers 2-0. Mandatory Credit: Ezra O. Shaw /Allsport (Ezra Shaw/Getty Images)
Derek Jeter though the years 26 Feb 1999: Infielder Derek Jeter #2 of the New York Yankees poses for the camera on Photo Day during Spring Training at Legends Field in Tampa, Florida. Mandatory Credit: Vincent Laforet /Allsport (Vincent Laforet/Getty Images)
Derek Jeter though the years 26 Feb 1999: Infielder Derek Jeter #2 of the New York Yankees poses for the camera on Photo Day during Spring Training at Legends Field in Tampa, Florida. Mandatory Credit: Vincent Laforet /Allsport (Vincent Laforet/Getty Images)
Derek Jeter though the years 13 Oct 1999: Shortstop Derek Jeter #2 of the New York Yankees jumps to make a catch against the Boston Red Sox during game 1 of the American League Championship Series at Yankee Stadium in Bronx, New York. The Yankees defeated the Red Sox 4-3. (Ezra Shaw/Getty Images)
Derek Jeter though the years 1999: Derek Jeter #2 of the New York Yankees slides over a base during the American League Championship Series game six against the Boston Red Sox at Fenway Park in Boston, Massachusetts. The Yankees defeated the Red Sox 6-1. Mandatory Credit: Doug Pensinger /Allsport (Doug Pensinger/Getty Images)
Derek Jeter though the years 27 Oct 1999: Derek Jeter #2 of the New York Yankees celebrates in the dug-out after Jim Leyrtiz #13 hits a home run during the World Series Game four against the Atlanta Braves at Yankee Stadium in the Bronx, New York. The Yankees defeated the Braves 4-1. (Jamie Squire/Getty Images)
Derek Jeter though the years 381058 09: New York Yankees World Series Most Valuable Player Derek Jeter waves to the crowd October 30, 2000 during the Yankees'' victory celebration at City Hall in New York City. The Yankees defeated the New York Mets four-games-to-one last week in the city's first Subway Series since 1956. It was the Yankees'' third consecutive World Series Championship. (Photo by Chris Hondros/Newsmakers) (Chris Hondros/Getty Images)
Derek Jeter though the years NEW YORK - NOVEMBER 01: Shortstop Derek Jeter #2 of the New York Yankees looks on wearing a FDNY cap before game five of the 2001 World Series against the Arizona Diamondbacks at Yankee Stadium in New York, New York on October 31 2001. The Yankees defeated the Diamondbacks 3-2. (Photo by Al Bello/Getty Images) (Al Bello/Getty Images)
Derek Jeter though the years OAKLAND, CA - OCTOBER 14: (FILE PHOTO) Derek Jeter of the New York Yankees jumps over Eric Chavez of the Oakland As during game four of the American League Divisional Series at the Network Associaties Colesium October 14, 2001 in Oakland, California. The New York Yankees franchise celebrates the 100th anniversary of their move to New York City January 9, 2003. Prior to being known as the New York Yankees, the Baltimore franchise of the American League was moved to New York City on January 9, 1903. The team was nicknamed "The Highlanders" shortly thereafter and only acquired the current name "Yankees" circa April 1913. (Photo by Jed Jacobsohn/Getty Images) (Jed Jacobsohn/Getty Images)
Derek Jeter though the years BLACKSBURG, VA - MARCH 18: Derek Jeter #2 of the New York Yankees smiles in the dugout during a memorial exhibition game against the Virginia Tech Hokies at English Field on March 18, 2008 in Blacksburg, Virginia. (Photo by Scott Cunningham/Getty Images) (Scott Cunningham/Getty Images)
Derek Jeter though the years NEW YORK - APRIL 01: Derek Jeter #2 of the New York Yankees makes the throw to second for the out to end the third inning after fielding the hit by Alex Rios #15 of the Toronto Blue Jays during Opening Day at Yankee Stadium April 1, 2008 in the Bronx borough of New York City. (Photo by Jeff Zelevansky/Getty Images) (Jeff Zelevansky/Getty Images)
Derek Jeter though the years NEW YORK - APRIL 21: Derek Jeter #2 of the New York Yankees in the field against the Oakland Athletics on April 21, 2009 at Yankee Stadium in the Bronx borough of New York City. (Photo by Nick Laham/Getty Images) (Nick Laham/Getty Images)
Derek Jeter though the years NEW YORK - SEPTEMBER 09: Derek Jeter #2 of the New York Yankees acknowledges the crowd after hitting a single in the 7th inning against the Tampa Bay Rays during the game on September 9, 2009 at Yankee Stadium in the Bronx borough of New York City. Jeter's hit ties Lou Gehrig's all-time club record of 2,721 hits. (Photo by Jared Wickerham/Getty Images) (Jared Wickerham/Getty Images)
Derek Jeter though the years NEW YORK - OCTOBER 07: Derek Jeter #2 of the New York Yankees hits a two run home run in the third inning against the Minnesota Twins in Game One of the ALDS during the 2009 MLB Playoffs at Yankee Stadium on October 7, 2009 in the Bronx borough of New York City. (Photo by Nick Laham/Getty Images) (Nick Laham/Getty Images)
Derek Jeter though the years PHOENIX - JUNE 22: Derek Jeter #2 of the New York Yankees watches from the dugout during the Major League Baseball game against the Arizona Diamondbacks at Chase Field on June 22, 2010 in Phoenix, Arizona. The Yankees defeated the Diamondbacks 9-3. (Photo by Christian Petersen/Getty Images) (Christian Petersen/Getty Images)
Derek Jeter though the years NEW YORK - JUNE 12: Derek Jeter #2 of the New York Yankees hits an RBI single in the bottom of the eight for his second run batted in against the Cleveland Indians on June 12, 2011 at Yankee Stadium in the Bronx borough of New York City. (Photo by Mike Stobe/Getty Images) (Mike Stobe/Getty Images)
Derek Jeter though the years NEW YORK, NY - OCTOBER 13: Derek Jeter #2 of the New York Yankees reacts after he injured his leg in the top of the 12th inning against the Detroit Tigers during Game One of the American League Championship Series at Yankee Stadium on October 13, 2012 in the Bronx borough of New York City, New York. (Photo by Al Bello/Getty Images) (Al Bello/Getty Images)
Derek Jeter though the years NEW YORK, NY - MAY 15: Derek Jeter #2 of the New York Yankees looks on from the dugout prior to the game against the New York Mets on May 15, 2014 at Citi Field in the Flushing neighborhood of the Queens borough of New York City. Yankees defeated the Mets 1-0. (Photo by Mike Stobe/Getty Images) (Mike Stobe/Getty Images)
Derek Jeter though the years BOSTON, MA - SEPTEMBER 28: Derek Jeter #2 of the New York Yankees acknowledges the crowd after hitting a single for his last career at bat in the third inning against the Boston Red Sox during the last game of the season at Fenway Park on September 28, 2014 in Boston, Massachusetts. (Photo by Al Bello/Getty Images) (Al Bello/Getty Images)
Derek Jeter though the years NEW YORK, NY - SEPTEMBER 25: Derek Jeter #2 of the New York Yankees celebrates after a game winning RBI hit in the ninth inning against the Baltimore Orioles in his last game ever at Yankee Stadium on September 25, 2014 in the Bronx borough of New York City. (Photo by Elsa/Getty Images) (Elsa/Getty Images)
Derek Jeter though the years NEW YORK, NEW YORK - JANUARY 22: Derek Jeter speaks to the media after being elected into the National Baseball Hall of Fame Class of 2020 on January 22, 2020 at the St. Regis Hotel in New York City. The National Baseball Hall of Fame induction ceremony will be held on Sunday, July 26, 2020 in Cooperstown, NY. (Photo by Mike Stobe/Getty Images) (Mike Stobe/Getty Images)