Golovkin made Canelo a much better fighter. Confirmed by trainer

Canelo became a better fighter after losing to mayweather. After facing ggg twice he added dimensions to his game and became a much better fighter. The ggg fight made canelo have a much better inside game and he felt more confident taking the fight to his opponent. Canelo now has the ability to walk down his opponent and ko them something he never had before. The link below was back in May. Reynoso says the confidence level of Canelo has grown by leaps and bounds after the two fights against Gennady Golovkin, in September of 2017 and September of 2018. "When you beat a boxer of Gennady Golovkin's caliber, you gain confidence in the things you're doing," Reynoso said. https://www.boxingscene.com/trainer-canelo-confidence-grew-beating-golovkin--138612