Is Michael Bennt vs Tommy Morrison applicable here? I know Morrison had just beat Foreman and was coming off a big win streak...9 or so in a row.
A couple from recent years. Stevie Cruz over Barry McGuigan. Lonnie Smith over Billy Costello Gaby Canizales over Richie Sandoval All 3 looked great winning the title in upsets and soon disappeared.
Considering You asked a Teenager(Manassa) to do your work for you, I question who really is the kid. I suggestion thinking before calling a male in his twenties a kid. Kids could not endor the Physical Training that I do everyday to prepare myself for boxing and wrestling. Have a nice night.
...........Akinobu Hiranaka starching Rosario in one round might be a good call, but Rosario was so up and down by that point that it wasn't a true shocker the way some others mentioned here are. Hiranaka proved his mediocrity by being stopped next by the equally forgettable Morris East.
Mike Weaver KO 15 John Tate Mike became a better fighter after he beat Tate, despite his life and death struggle with larry Holmes a few years before.
Rossman was a marginal contender at the time, so his kayo over Galindez was a huge upset in 1978. Ironically, one year later Rossman himself was shockingly kayoed by 6 to 1 underdog Ramon Ronquello in what was supposed to be a tune-up for Rossman. Ronquello entered the fight with a record of 13-6-2.
Ramon Ranquello KO 7 Mike Rossman in Rossman's first fight after losing the rematch and the WBA light heavyweight title to Victor Galindez. Ranquello was 13-6-2 coming in.