Former UFC welterweight champion Kamaru Usman has responded to Conor McGregor's recent online dig, challenging the Irishman's integrity. During a livestream, McGregor called Usman a 'bum' and a 'bald malteaser head', sparking a heated exchange between the fighters.

At 37 years old, Usman is going through the toughest period of his career, having lost his last three fights, including a recent defeat against Khamzat Chimaev. Despite his struggles, Usman was taken aback by McGregor's insults, questioning why the Irishman would kick him while he's down.

During the livestream, McGregor also discussed current welterweight champion Leon Edwards and his upcoming title fight against Belal Muhammad. McGregor expressed his desire to earn a welterweight title shot by defeating Michael Chandler at UFC 303, aiming to become the first fighter in UFC history to hold titles in three different weight classes.

In response to McGregor's comments, Usman expressed respect for McGregor's achievements in the sport but pointed out his own accomplishments and questioned McGregor's actions. "Conor has done some pretty fantastic things in MMA, but so have I," Usman stated during an episode of the Pound 4 Pound Podcast.

Usman took exception to being called a 'bum' and highlighted that despite McGregor's personal troubles, he never kicked him while he was down. The former welterweight champion emphasized his credibility and reminded McGregor that he had given him two opportunities to fight for the title when Usman was still the champion.

In regards to McGregor's upcoming fight against Michael Chandler, Usman warned him to take it seriously and called for him to put down the whiskey bottle and focus on training. Usman emphasized the seriousness of the sport and the potential for it to humble fighters, including McGregor, who has faced his fair share of setbacks.

The clash between Usman and McGregor adds fuel to the fire in the welterweight division, with both fighters seeking to regain their dominant form. As McGregor prepares for his comeback fight, Usman's response serves as a reminder that he isn't backing down and questions the integrity behind McGregor's insults.

It remains to be seen if McGregor will respond to Usman's comments, but fans can expect the tension between the two fighters to heighten in the lead-up to their respective bouts.