Here is the quote: “Jeffries number one? No, sir. Give me Joe Choynski anytime,” Johnson said. “I faced both and I should know. Jeffries had a powerful wallop, but Choynski had a paralyzing punch. His left hand was a corker. He was the hardest puncher in the last fifty years, with Joe Walcott a close second. I think his left hook was even more effective than [Jack] Dempsey’s. Choynski could paralyze you, even if he didn’t catch you flush.” https://www.boxing247.com/boxing-ne...johnson-and-then-taught-him-how-to-box/271426