![Boxer Marco Parente reacts as the referee announces his points loss to Nick Fantauzzi during boxing action in Toronto, on Saturday, December 15, 2018. THE CANADIAN PRESS/Chris Young Stock Photo - Alamy Boxer Marco Parente reacts as the referee announces his points loss to Nick Fantauzzi during boxing action in Toronto, on Saturday, December 15, 2018. THE CANADIAN PRESS/Chris Young Stock Photo - Alamy](https://c8.alamy.com/comp/2HRH9TH/boxer-marco-parente-reacts-as-the-referee-announces-his-points-loss-to-nick-fantauzzi-during-boxing-action-in-toronto-on-saturday-december-15-2018-the-canadian-presschris-young-2HRH9TH.jpg)
Boxer Marco Parente reacts as the referee announces his points loss to Nick Fantauzzi during boxing action in Toronto, on Saturday, December 15, 2018. THE CANADIAN PRESS/Chris Young Stock Photo - Alamy
![Mexican boxer Marco Antonio Barrera (R) takes aim on Brazilian Luis Claudio Fleitas and gives a right cross in their bout for the World Boxing Organization title, in Mexico City June 17. Mexican boxer Marco Antonio Barrera (R) takes aim on Brazilian Luis Claudio Fleitas and gives a right cross in their bout for the World Boxing Organization title, in Mexico City June 17.](https://c8.alamy.com/comp/2D55PCR/mexican-boxer-marco-antonio-barrera-r-takes-aim-on-brazilian-luis-claudio-fleitas-and-gives-a-right-cross-in-their-bout-for-the-world-boxing-organization-title-in-mexico-city-june-17-barrera-defeated-fleitas-by-knock-out-hrhb-2D55PCR.jpg)
Mexican boxer Marco Antonio Barrera (R) takes aim on Brazilian Luis Claudio Fleitas and gives a right cross in their bout for the World Boxing Organization title, in Mexico City June 17.
![German heavyweight boxer Marco Huck poses during public training in Stuttgart, Germany, 21 February 2012. Marco Huck will fight Povetkin from Russia for the WBA world heavyweight championship at the Porsche Arena German heavyweight boxer Marco Huck poses during public training in Stuttgart, Germany, 21 February 2012. Marco Huck will fight Povetkin from Russia for the WBA world heavyweight championship at the Porsche Arena](https://c8.alamy.com/comp/D6GPGB/german-heavyweight-boxer-marco-huck-poses-during-public-training-in-D6GPGB.jpg)
German heavyweight boxer Marco Huck poses during public training in Stuttgart, Germany, 21 February 2012. Marco Huck will fight Povetkin from Russia for the WBA world heavyweight championship at the Porsche Arena
![Mexican boxer Marco Antonio Barrera during a light training session at Shannon's Gym Pennyhill Park, Openshaw Stock Photo - Alamy Mexican boxer Marco Antonio Barrera during a light training session at Shannon's Gym Pennyhill Park, Openshaw Stock Photo - Alamy](https://c8.alamy.com/comp/GBH1FT/mexican-boxer-marco-antonio-barrera-during-a-light-training-session-GBH1FT.jpg)