Here's our interview with Christopher Klein who is the author of the 2016 book "Strong Boy: The Life and Times of John L. Sullivan, America's First Sport's Hero." Sullivan was the last real bare-knuckle / first gloved Heavyweight Champion of the world. Klein has contributed to History.com, Smithsonian.com, The New York Times, ESPN, ect. For a great read check out his book and his website to read some more articles by him!

​Here's the interview link. 

To order book from Amazon, click here.  

Christopher Klein