There has been a few lately Lemieux, Kirkland, Jacobs, all up and comers. Then there were some at a higher level like Dzinziruk and Berto etc
When you step up in competition that is what happens. Look at Williams first loss to Quintana, **** happens. People always say mayweather 0 means nothing, yet they forget what separates him from the rest is that he has gone up 5 weights, beating multiple world champions, becoming a 6 time world champion, p4p best fighter on the planet, while remaining undefeated. That's what separates the good from the great.
Canelo Alvarez officially has super powers which is turning villain Dan Rafael's curse towards other fighters. I predict boldly that Canelo comes through the whole year unbeaten, defying the fat odds that favor Danny the Daredevil.