Third base
Eddie Yost was a 32-year-old 14-season veteran when the Detroit Tigers acquired him from Washington in December of 1958. That meant that when Regan made his major league debut in July of 1960, Yost was right there in his common place, batting leadoff.
Yost went 0-4 with two strikeouts, but that was unusual. For most of his career, he was known as the prototype of a patient hitter. He had arrived with the Senators as a 17-year-old World War II fill-in in August of 1944, and although he lasted just seven games before joining the Navy he returned in 1946, and by 1947 was a regular at the precocious age of 20.
Yost was so known for his discerning eye that he acquired a unique nickname, “The Walking Man.” Six different times, including 1960, he led the American League in bases on balls, and in 1956 he actually accumulated more walks (151) than hits (119). That led to a slash line you’d rarely see these days, .231/.412/.336.
But Yost was aging just as Regan was arriving, so following the 1960 season the Tigers let him go to the California Angels in the expansion draft. He played another season and a half before retiring with 1,863 hits plus 1,614 bases on balls.
In 1963 Yost joined the staff of the Washington Senators as a coach. He coached with the Mets under Gil Hodges, and later with the Red Sox. He died in 2012 at age 86.