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The heated rivalry between former pound-for-pound king Floyd Mayweather and MMA superstar Conor McGregor continues to command the attention of the sporting world ahead of their Aug. 26 pay-per-view boxing match.<p>But there’s another rivalry brewing beneath the surface inside McGregor’s training …

Read more at CBS Sports: https://www.cbssports.com/boxing/news/paulie-malignaggi-describes-latest-sparring-session-with-conor-mcgregor-as-violent/