On Saturday, the Pittsburgh Pirates recalled Hoy Jun Park (박효준), who was acquired in a July 26 trade with the New York Yankees. When Park plays in a game he will be third Korean in Pirates history to play in a Major League game, behind Chan-ho Park in 2010 and Jung-ho Kang from 2015 through 2019, though the Pirates have had several other Korean prospects and players in their system over the decades.
"Hoy" is how his name has been romanized, though the Korean corresponds to "Hyo" (효). Though I don't know the details of Park's name, inconsistencies like this do sometimes happen if a family member makes a mistake applying for a passport.