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Evander Holyfield says Anthony Joshua has “a great chance” at breaking Marciano's legendary 49-0 record
Boxing History - "The Brockton Blockbuster" Rocky Marciano, heavyweight champion who retired at 49-0 with 43 knockouts. | Facebook
![Brazil's Acelino Freitas, the World Boxing Lightweight champion, takes a break while working out at his training camp in Fernwood, Pennslyvania, June 28. Freitas, from Salvador, Bahia and with an undefeated record Brazil's Acelino Freitas, the World Boxing Lightweight champion, takes a break while working out at his training camp in Fernwood, Pennslyvania, June 28. Freitas, from Salvador, Bahia and with an undefeated record](https://c8.alamy.com/comp/2D49H87/brazils-acelino-freitas-the-world-boxing-lightweight-champion-takes-a-break-while-working-out-at-his-training-camp-in-fernwood-pennslyvania-june-28-freitas-from-salvador-bahia-and-with-an-undefeated-record-of-35-0-0-will-defend-his-championship-against-us-boxer-diego-corrales-38-2-0-on-august-7-reutersteddy-blackburn-tbgn-2D49H87.jpg)
Brazil's Acelino Freitas, the World Boxing Lightweight champion, takes a break while working out at his training camp in Fernwood, Pennslyvania, June 28. Freitas, from Salvador, Bahia and with an undefeated record
![VIDEO] With 49 wins, undefeated dwarf boxer Wanheng, one win from Mayweather record - Punch Newspapers VIDEO] With 49 wins, undefeated dwarf boxer Wanheng, one win from Mayweather record - Punch Newspapers](https://cdn.punchng.com/wp-content/uploads/2018/02/27101222/Dwarf-Giant-Boxer-Wanheng-Menayothin.jpg)
VIDEO] With 49 wins, undefeated dwarf boxer Wanheng, one win from Mayweather record - Punch Newspapers
![ESPN on Twitter: "49 wins. 0 losses. Rocky Marciano has some company in the history books. http://t.co/hpr5JGq7Rw" / Twitter ESPN on Twitter: "49 wins. 0 losses. Rocky Marciano has some company in the history books. http://t.co/hpr5JGq7Rw" / Twitter](https://pbs.twimg.com/media/COwcDVhWEAAif6O.jpg)
ESPN on Twitter: "49 wins. 0 losses. Rocky Marciano has some company in the history books. http://t.co/hpr5JGq7Rw" / Twitter
![Column: Floyd Mayweather, Rocky Marciano and why 48, 49 and 50-0 have little significance - mlive.com Column: Floyd Mayweather, Rocky Marciano and why 48, 49 and 50-0 have little significance - mlive.com](https://www.mlive.com/resizer/v8_-NJPDAEdRuLNLFT74IUnvu3k=/1280x0/smart/advancelocal-adapter-image-uploads.s3.amazonaws.com/image.mlive.com/home/mlive-media/width2048/img/mayweather_impact/photo/mayweather-marcianojpg-cb48068c98f8347d.jpg)
Column: Floyd Mayweather, Rocky Marciano and why 48, 49 and 50-0 have little significance - mlive.com
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