Phil71 wrote:First round of Hagler v Hearns 1985
Hearns' opening flurry was terrifying and would have flatlined most middleweights, but Hagler had maybe the greatest chin in boxing history.
Fun fact - early in his career during a doctor's examination it was discovered Hagler's skull was much thicker than the average person, which I'm sure contributed to his ability to absorb a punch.
Anyway that is definitely the best opening round in boxing history and one of the greatest period.