Former Negro League players Ulysses Hollimon, from left, Diego Segui, Earnest Johnson, Jesse Rogers and Bob Motley are introduced before a game between the Minnesota Twins and Kansas City Royals in Kansas City, Missouri, on Saturday, July 21, 2012. (John Sleezer / Kansas City Star / Tribune News Services)

Former Negro League players Ulysses Hollimon, from left, Diego Segui, Earnest Johnson, Jesse Rogers and Bob Motley are introduced before a game between the Minnesota Twins and Kansas City Royals in Kansas City, Missouri, on Saturday, July 21, 2012. (John Sleezer / Kansas City Star / Tribune News Services)

Diego Segui, thrower of first Mariners pitch, passes away at 87

Diego Seguí, the Cuban journeyman who pitched 15 seasons in Major League Baseball and another 10 years in the Mexican League, died on Tuesday at the age of 87.

Seguí was born in Holguín, Cuba. He initially signed with the Cincinnati Reds in 1958, but they released him. Pitching for Tucson, a team in the unaffiliated Class C Arizona League, set him on the path to the majors. They sold the right-hander to the Athletics, with whom he spent nine of his 15 big-league seasons, including his debut in ’62, their final season in Kansas City in ’67 and their inaugural season in Oakland in ’68. On the ’70 A’s, Seguí won the American League ERA title with a 2.56 mark over 47 games.

In between, Seguí pitched for the ’66 Washington Senators and the first and only Seattle Pilots team in ’69 (they were relocated to Milwaukee and became the Brewers the next year). He was named team MVP of the Pilots.

After being traded from Oakland to St. Louis during the ’72 season, the Cardinals sent Seguí to the Red Sox in December ’73. He spent the next two years in Boston. On Sept. 22, 1974, he broke the Red Sox single-game record for strikeouts by a reliever when he punched out 12 Baltimore Orioles — matching his career-high from Sept. 6, 1964 — in 7.2 innings. It was one of five double-digit strikeout performances in Seguí’s career, and his first since 1965.

On the Red Sox, Seguí was teammates with fellow Cuban pitcher Luis Tiant, who passed away last Oct. 8. Both men had made the difficult decision not to return to their homeland when Fidel Castro closed the doors in 1961.

At 37 years old, Seguí pitched in 33 regular-season games on Boston’s ’75 pennant team. On July 29, he pitched a complete game and struck out 11 in a 4-0 loss to Milwaukee when Tiant was sidelined with a shoulder injury. Game 5 of the World Series was Seguí’s second and final career postseason appearance and only World Series appearance.

For his final MLB season in 1977, Seguí returned to Seattle. There, at 40 years old, he threw the first pitch in Mariners history. Not only was he the only person who played for both Seattle teams, he also pitched in each one’s inaugural game.

Seguí finished his MLB career with a 3.81 ERA over 639 games, but he continued to pitch. Between ’78 and ‘84, he was on the mound in the Mexican League. He also spent nearly two decades playing winter ball in Venezuela and was inducted into the Venezuelan Hall of Fame in 2003.

Seguí’s son, David, spent 15 seasons in the majors as well.

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Sports

AquaSox infielder Luis Suisbel makes a throw in Everett's 9-4 loss to the Eugene Emeralds at Funko Field on Wednesday. (Photo Courtesy: Evan Morud / Everett AquaSox)
AquaSox comeback bids fall short against Eugene

Everett cuts two separate four-run deficits in half, but ultimately falls 9-4 to Emeralds.

Shorewood's Rylie Gettmann hits the ball during a Class 3A District 1 girls tennis tournament at Snohomish High School in Snohomish, Washington on Wednesday, May 15, 2024. (Annie Barker / The Herald)
Wesco all-league girls tennis teams announced

Wesco has announced its all-league teams for girls tennis. Glacier Peak and… Continue reading

Diego Segui, thrower of first Mariners pitch, passes away at 87

Diego Seguí, the Cuban journeyman who pitched 15 seasons in Major League… Continue reading

Stanwood junior Tanner Requa is The Herald's 2025 All-Area Baseball Pitcher of the Year. (Olivia Vanni / The Herald)
The Herald’s 2025 Baseball Pitcher of the Year: Tanner Requa

The Stanwood junior had a 0.91 ERA and a school-record 3 complete-game shutouts.

Lake Stevens senior Aspen Alexander is The Herald's 2025 All-Area Baseball Hitter of the Year. (Olivia Vanni / The Herald)
The Herald’s 2025 Baseball Hitter of the Year: Aspen Alexander

The Lake Stevens senior had a .403 batting average and a 1.279 OPS.

Monroe’s Caleb Campbell high-fives his teammate Mike Enrico after scoring during the game against Everett on Wednesday, April 23, 2025 in Monroe, Washington. (Olivia Vanni / The Herald)
Wesco all-league baseball teams announced

Wesco has announced its all-league teams for baseball. WESCO 4A C0-MVPs Andrew… Continue reading

AquaSox’s Lazaro Montes and Milkar Perez smile and laugh for a photo during a break at practice at Funko Field on Tuesday, April 1, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Vote for the Frog of the Week

Who is the Frog of the Week? Vote for the Everett AquaSox… Continue reading

J.P. Crawford of the Seattle Mariners bunts the ball against the Minnesota Twins in the third inning at Target Field on Tuesday, June 24, 2025, in Minneapolis. (Stephen Maturen / Getty Images / Tribune News Services)
Julio Rodriguez sac fly leads M’s to win

The Twins rallied from a five-run deficit against the Seattle… Continue reading

AquaSox infielder Charlie Pagliarini makes a put-out throw to first base during Everett's 12-5 loss to the Eugene Emeralds at Funko Field on Tuesday. (Evan Morud / Everett AquaSox)
AquaSox flounder in all facets in loss to Eugene

Everett falls behind 12-0 in Emerald pitching gem before plating some late runs for a 12-5 loss.

Michael Arroyo hits a 2-run home run for the Everett AquaSox as Lazaro Montes looks on at Funko Field on Thursday, June 12, 2025. (Photo courtesy of Shari Sommerfeld / Everett AquaSox)
Four AquaSox promoted to Double-A Arkansas

Montes, Arroyo, Perez and Beilenson all move up after helping Frogs clinch Series spot.

Quarterback Russell Wilson (3) practices at the New York Giants organized team activities (OTAs), Wednesday, May 28, 2025, in East Rutherford, N.J. (Andrew Mills / Tribune News Services)
Russell Wilson blamed for lack of guaranteed NFL deals

Giants quarterback Russell Wilson’s contract with the Denver Broncos angered the former… Continue reading

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.