Rosen was the backup Third Baseman for the Indians in their 1948 World Series win, and he later became their starter in 1950, which coincided with his first Home Run Title (37). Rosen had 116 Runs Batted In that year, and from 1950 to 1954, he had at least 24 Home Runs and 102 RBIs with the last three seasons seeing him bat over .300. The four-time All-Stars best season by far was 1953, where he led the American League in Runs (115), Home Runs (43), RBIs (145), and Slugging Percentage (.613) with a .336 Batting Average. That year, he was named the American League MVP.
Rosen played until 1957, and he retired with a lovely Slash Line of .285/.384/.495. The Indians would induct him into their franchise Hall of Fame in 2006.