Why was there never a bout between Jake lamotta and rocky graziano?

A bout between Jake LaMotta and Rocky Graziano never occurred primarily due to timing and weight class differences. LaMotta was a middleweight champion active during the 1940s, while Graziano, also a middleweight, rose to prominence in the late 1940s and early 1950s. Their careers did not overlap significantly in a way that would have facilitated a matchup, and both fighters had their own paths and rivalries during their respective boxing eras.