Roy Smalley joined Minnesota in June 1976 as the star signing from a major trade that sent future Hall of Famer Bert Blyleven to the Texas Rangers. The switch-hitting shortstop quickly assumed the starting position, offering a unique combination of power and patience at a role traditionally dominated by pure defenders.

During the 1979 season, he had a standout campaign, earning his first All-Star selection and becoming the top offensive shortstop in the American League. Smalley achieved career highs with 168 hits, 24 home runs, 95 RBIs, and 100 runs scored. He demonstrated excellent strike zone control, leading the league in games played and plate appearances, and finishing eleventh in AL MVP voting.

Smalley was a key player who held the shortstop role in Minnesota for six seasons, showcasing durability by logging extensive games before a 1982 trade to the Yankees. His return to the Twins in 1985 via a trade from the White Sox marked a vital second chapter, during which he served as a versatile infielder and designated hitter, providing veteran stability to a young team.

Smalley retired after the 1987 season and would overall contribute 1,046 hits, 110 home runs, while batting .262.