The two meet inside the ring for the second time on May 31 as Groves looks to avenge the defeat he suffered to Froch last November, but the reigning WBA and IBF super-middleweight champion believes that there is no chance of the challenger winning any mind games.
"I'm in a much better place," the 36-year-old told Ringside. "There's certainly not anything he's going to say that's going to wind me up. It's impossible.
"The hatred started when George was being really disrespectful and playing down my performances and writing me off.
"I thought to myself 'hang on a minute, I'm world champion. I deserve a little bit more respect.' But there's nothing he can say now that is going to get under my skin."
Around 80,000 people are expected to attend the bout, which is being held at Wembley.