Diego Segui’s wife, Emilia Segui, graduated from Bishop Ward High School in 1962.
Diego Segui, the Cuban pitcher who appeared in the Seattle Pilots’ first major-league game in 1969 and threw the first pitch of the Seattle Mariners’ first game in 1977, passed away on Tuesday, June 24, 2025, at 87.
However, the cause of death has not been revealed yet.
Mariners’ president of business operations, Kevin Martinez, mourned the loss of Diego by stating,
“Our thoughts are with the Segui family, including David, Diego’s son, who the Mariners know well from his time with us in 1998 and 1999.” “Diego was always generous with his time, visiting us in Seattle to help us celebrate milestones, including his last trip here for Hispanic Heritage Day in 2012. “I also have fond memories of Diego’s grandson Cory throwing the final pitch in Kingdome history, a fitting finale for the Kingdome after Diego’s historic first pitch.”
Kevin Martinez
Debuting with the Kansas City Athletics in 1962, Segui pitched for six teams across 15 MLB seasons, posting a 92-111 record with a 3.81 ERA in 639 games.
The right-hander was 12-6 with a 3.35 ERA for the Seattle Pilots during their lone MLB season in 1969. He started eight games and also had a team-best 12 saves that season.
He appeared in the Pilots’ first game at the California Angels, allowing one run in three innings of relief in a 4-3 victory.
Segui won the American League ERA title with the Oakland Athletics in 1970, posting a 2.56 ERA in 162 innings.
After finishing his major league career, he pitched in the Mexican Professional League until 1984.
In 2024, he was honored by the Negro Leagues Baseball Museum with its Negro Leagues Beisbol Lifetime Achievement Award.
Diego Segui And His Wife Emilia Segui Celebrated Their 60th Wedding Anniversary In 2023
Diego Segui met Emilia Segui while he was playing for Kansas City. As per the reports, the mother of Athletics catcher Joe Azcue introduced them.
After dating for several years, the couple tied the knot on December 28, 1963.
In 2023, Diego and Emilia celebrated their 60th wedding anniversary along with their family.
Sadly, their married life ended following the tragic death of Emilia on Sunday, July 14, 2024, at the age of 79.

Emilia was born on September 21, 1944, in Kansas City, Kansas, to her father, Fidel, and her mother, Luz Sauceda. She grew up with his brother, Fidel Sauceda Jr.
She graduated from Bishop Ward High School in 1962 and served at a retail store as an operator.
Emilia also worked at K-mart as a receptionist for the Wyandotte County District Attorney’s office and retired from TJ Maxx.
Diego And Emilia Segui Were Blessed With Four Children
Diego and Emilia had three sons, Danny, Diego Jr., and David Segui, and one daughter, Diana Segui of Kansas City.
Their son David Vincent Segui, 59, born in 1966, is an American former Major League Baseball first baseman.
David played collegiate baseball for Louisiana Tech and Kansas City Kansas Community College.
He has admitted to using anabolic steroids during his career with the Mets, obtaining them from former clubhouse attendant Kirk Radomski.
David was married to Donna Moniz, with whom he had two sons: Brock and Shai Segui. Sadly, they officially divorced in 2017.
Following a divorce, the court forced Shai and his younger brother, Brock, to live with their mother, Donna Moniz, whom Shai accused of abuse.
On the other hand, Diego’s other children have stayed away from the media spotlight.
Currently, they are mourning the tragic death of their supportive and devoted father, Diego Segui.
In Case You Didn’t Know
- Segui continued pitching in the Mexican League for another 10 years, tossing a no-hitter for the Cafeteros de Cordoba during the 1978 season. During his Mexican stint, he amassed a 96-61 record with a 2.91 ERA and 1,025 strikeouts in 193 pitching appearances.
- In 1970 with Oakland, Segui went 10-10 with two saves in 47 appearances while leading the American League pitchers with a 2,56 ERA.
- On December 7, 1973, he was traded by St. Louis, along with Reggie Cleveland and Terry Hughes, to the Red Sox in exchange for John Curtis, Lynn McGlothen, and Mike Garman.