The undefeated 27 year-old has already held world titles in the bottom three weight divisions through his career and now hopes to land a fourth in the summer as the hard-hitter continues his amazing rise up the pound for pound rankings.
Gonzalez, who was an overwhelming favourite to beat Leon pre-fight, eased through the gears until the contest was halted at 2:27 of the third round.
With the victory, ‘Chocolatito’ pushes his awesome record to 42-0 and will be a handful for any of the current champions at 115lbs once the classy operator secures his inevitable title shot.
Elsewhere in North Dakota, former two-weight world champion Virgil Hill stopped Jimmy Campbell in two rounds to nail down a first win since a 2006 triumph over Valery Brudov in New Jersey.
The veteran 51 year-old was returning from just over seven years out of the ring and had no trouble improving his C.V to 51-7 with a 24th early finish.
Hill reigned as light heavyweight king for ten years between 1987 and 1997 before moving up to 200lb with considerable success in the years that followed.
