34-year-old Yadiel Hernández was born on October 9, 1987, he is a Cuban professional baseball outfielder for the Washington Nationals of Major League Baseball (MLB). He previously played in the Cuban National Series for Matanzas.
Hernández began his baseball career with the Cocodrilos in 2009. After hitting .369 for Matanzas in the 2014–15 Cuban National Series, Hernández defected to the United States at age 28 along with Cuban national teammate Luis Yander La O in June 2015, while they were in North Carolina for a game against American college baseball players.
Hernández was declared eligible to sign with a Major League Baseball team in April 2016. In September 2016, the Washington Nationals, not usually a major player for Cuban talent, signed him to a minor-league deal with a $200,000 signing bonus.
After playing for the Class-AA Harrisburg Senators in 2017 and 2018, Hernández was promoted to Class-AAA. He hit his first professional grand slam on May 9, 2019, for the Fresno Grizzlies of the Pacific Coast League. Along with teammate Dakota Bacus, he represented Fresno in the 2019 Triple-A All-Star Game.
At age 32, Hernández was called up to the major leagues for the first time on September 10, 2020, after Nationals infielder Howie Kendrick was placed on the injured list. He made his major league debut that day against the Atlanta Braves.
In 2021, he batted .273/.329/.413 with 9 home runs and 32 RBIs in 112 games. He had the slowest sprint speed of all major league left fielders, at 25.3 feet/second.