WBA and IBF champion Carl Froch has insisted that he will take "great pleasure" in knocking out fellow Brit George Groves this weekend.
The pair go toe-to-toe in the ring in Manchester on Saturday, and Froch has described the unbeaten Groves as a "bad lad".
"He has developed a whopping ego and he seems to have turned into a bit of a bad lad," Froch told BBC Sport.
"It is uncalled for and I don't like that. I am going to take great pleasure in knocking him out."
The 36-year-old has lost two out of 33 bouts.
