Which closer was the first inducted unanimously into the Baseball Hall of Fame?

Which Yankees pitcher signed a nine-year, $324 million contract in December 2019? Which Mexican-born Dodgers pitcher caused "Fernandomania" in 1981? Which Hall of Fame pitcher was nicknamed "The Ryan Express"? Which Hall of Fame closer for the Padres was the first to reach 600 saves? Which Yankees shortstop received all but one vote in his 2020 Hall of Fame election? Which Cardinals star, nicknamed "The Wizard of Oz," won 13 Gold Gloves at shortstop? Which Orioles star was the 1983 AL MVP and is a member of the 3,000-hit club? What position did Babe Ruth play for most of his Yankees career?