Former two division champion Paulie Malignaggi has continued his verbal assault on UFC superstar Conor McGregor.

Malignaggi was hired as a sparring partner and was helping McGregor prepare for his upcoming professional boxing debut, taking place on August 26th from the T-Mobile Arena in Las Vegas.

Last week, Malignaggi became enraged and quit McGregor's camp - after the MMA fighter's team members leaked photos of a recent sparring session to social media.

The images created a firm impression that Malignaggi was dropped and took a beating during the spar. Malignaggi maintains that he outboxed McGregor to the point where the MMA fighter pushed him down to the floor.

According to Malignaggi, Mcgregor made him and all of the other sparring partners practice pre-fight stare-downs - which Malignaggi found extremely odd.

“The sparring partners at the house told me they have a referee for every sparring session because he wants the proper boxing rules. Joe Cortez is a hall-of-fame referee and has refereed a lot of big fights, I cannot knock him for that and getting the feel for it," Malignaggi said to The Sun.

“Then they told me he does everything like a fight night. He does whole introductions and stare-downs. That’s when I started thinking ‘what a jerk-off ego maniac’. That was the first time in my mind I thought that.

“When I heard he wanted stare-downs for sparring I thought he was an ego maniac jerk-off. I didn’t get ticked off. That’s what he wants with everyone. The referee calls you together and introduces you and makes you stare-down. He gives you the Conor McGregor stare-down like it’s a fight but I just could not get into it.

“In my whole career my stare-down was always the same; jump up and down and grill you. I got to the stare-down and I didn’t do regular one. I just had a smirk.”