Carl Froch does not expect Saturday to be the start of years of competing in world title fights for George Groves.
Froch competed in 12 consecutive world title fights from 2008 with three reigns as world super-middleweight champion against the best in his division until he retired in July. The last two of those world title fights saw the Nottingham boxer stop Groves (21-2, 16 KOs) and Froch insists the Londoner will never recover from those setbacks.
"I think Groves is finished now, he's got coated twice, he's not the man and fighter he used to be," Froch said. "I think he tarnished himself fighting me.
"Unfortunately for him, his defining moment is getting KO'd at Wembley and it's not the best way to go out, especially mentally.
"He's lost power and speed, mentally he's a bit on edge, he doesn't seem himself, and if mentally you're not right will you train properly? And then come fight night you're not the same."
But since being knocked out by Froch in a rematch at Wembley in May 2014, Groves has registered two wins to earn a WBC world title shot against US-based Swede Badou Jack (19-1-1, 12 KOs), who he faces at the MGM Grand in Las Vegas on Saturday.
Despite these victories, even if Groves does win the belt off Jack on the undercard of Floyd Mayweather Jr's last career fight against fellow American Andre Berto, Froch still insists he is not the force he used to be.
"He has every chance of winning that fight with Jack. It's not an easy fight, it's a fight he could lose, but Badou Jack is very, very limited, he's not really a world-class operator who has a world title.
"I saw Jack's fight against Anthony Dirrell and it wasn't a top-level, high-quality fight.
Victory for Groves, 27, over Jack will set up the possibility of a rematch with British rival James DeGale, who holds the IBF version of the world title, a bout Froch admits would be a 'big fight'.
"Groves may or may not become WBC champion and if he does he deserves to: he works hard, he's a grafter, he believes in himself and it would be nice to see George Groves become a world champion, it really would.
"If he does [beat Badou Jack], a fight with DeGale is definitely a big fight because they have history, they're British and we all love a domestic dust-up.
"If they're both world champions then that's a massive fight in anyone's book. Is it a Wembley Stadium fight? I don't think so. But it is a big fight."