Answer
9 was the number worn by Roger Maris with the New York Yankees. Maris played with the Yankees from 1960 to 1966, and during that time he became one of the most feared hitters in baseball. In 1961, Maris broke Babe Ruth's single-season home run record by hitting 61 home runs. He was a seven-time All-Star and won the American League MVP award in 1960 and 1961.