Joseph Parker's needling of Anthony Joshua appears to be hitting its mark, with the English world heavyweight champion referring to his struggles keeping a lid on a "pot of fire".
Both Parker and his trainer Kevin Barry have spoken about how easy it seems to rattle Joshua ahead of their likely fight in late March.
The 28-year-old IBF and WBA "super" champion is used to having things go his way but Parker and his team have taken a defiant attitude to their negotiations and social media approach, in particular their shining a spotlight on what they describe as Joshua's "glass jaw".
"Life is about how you interpret things and when I first started boxing, my interpretation [of boxing] was all about Mike Tyson and the gutter side of it," Joshua said in an interview after he attended the BBC's Sports Personality of the Year awards in Liverpool.
Read more: Why Anthony Joshua's popularity makes him a tougher proposition for Joseph Parker