Diego Seguí

Diego Pablo Seguí González (August 17, 1937 – June 24, 2025) was a Cuban-born right-handed pitcher who played in Major League Baseball for the Kansas City and Oakland Athletics, Washington Senators, Seattle Pilots, St. Louis Cardinals, Boston Red Sox, and Seattle Mariners. A forkball specialist, Seguí led the American League with a 2.56 ERA in 1970 while going 10–10 with two saves in 47 appearances for Oakland. He holds a singular place in Seattle baseball history, having pitched for both the Pilots and the Mariners in the first game ever played by each franchise, earning a hold for the Pilots in 1969 and taking the opening-day loss for the Mariners in 1977.