How old was Sonny Liston REALLY when he fought Clay in Feb.1964 ?

From my readings of this forum and, IIRC, provision of contemporary news clippings in support, Galento did not spar Liston.

Galento did, however, believe that Liston was that much older than he admitted to - as many others believed at the time.

Confusion re Galento sparring Liston appears to have arisen out of the fact that Ezzard Charles did spar Sonny early in the piece and Ezzard gave a brief account of that experience.

Fair chance you’ll find the related thread(s) using the search function. There is a ton of already established and highly valuable info on this forum.

 

That's the $64,000 question.