![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
![Evander Holyfield says Anthony Joshua has “a great chance” at breaking Marciano's legendary 49-0 record Evander Holyfield says Anthony Joshua has “a great chance” at breaking Marciano's legendary 49-0 record](https://www.boxing247.com/wp-content/uploads/2015/12/joshua1234.jpg)
Evander Holyfield says Anthony Joshua has “a great chance” at breaking Marciano's legendary 49-0 record
![Brazil's Acelino Freitas, the World Boxing Lightweight champion, works out on a speed bag 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, works out on a speed bag at his training camp in Fernwood, Pennslyvania, June 28. Freitas, from Salvador, Bahia and with an undefeated record](https://c8.alamy.com/comp/2D493D3/brazils-acelino-freitas-the-world-boxing-lightweight-champion-works-out-on-a-speed-bag-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-2D493D3.jpg)
Brazil's Acelino Freitas, the World Boxing Lightweight champion, works out on a speed bag at his training camp in Fernwood, Pennslyvania, June 28. Freitas, from Salvador, Bahia and with an undefeated record
![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
![Is starting a professional boxing career at 28 too late? With the boxer having 10+ years of amateur experience? - Quora Is starting a professional boxing career at 28 too late? With the boxer having 10+ years of amateur experience? - Quora](https://qph.fs.quoracdn.net/main-qimg-31f4e2e968884b44fcf72bf4ebf6d1e6.webp)
Is starting a professional boxing career at 28 too late? With the boxer having 10+ years of amateur experience? - Quora
![♡♥Rocky Marciano is the only man in heavyweight boxing history to retire undefeated 49-0 with 43 knockouts. He… | Boxing history, American boxer, Heavyweight boxing ♡♥Rocky Marciano is the only man in heavyweight boxing history to retire undefeated 49-0 with 43 knockouts. He… | Boxing history, American boxer, Heavyweight boxing](https://i.pinimg.com/736x/ea/60/06/ea60061bd85c46a5192611f2fbc6d12f--boxing-history-heavyweight-boxing.jpg)
♡♥Rocky Marciano is the only man in heavyweight boxing history to retire undefeated 49-0 with 43 knockouts. He… | Boxing history, American boxer, Heavyweight boxing
![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)