Former super middleweight champion and Sky Sports pundit Carl Froch was impressed with Anthony Joshua's ability to go the twelve round distance.
On Saturday night, Joshua (21-0, 20 KOs) won a lopsided unanimous decision over Joseph Parker to unify the IBF, IBO, WBA, WBO world titles before a crowd of nearly 80,000 at Principality Stadium in Cardiff, Wales.
There was very little drama in the contest and neither fighter was hurt or in danger of going down in the contest.
The bout was a far cry from the fireworks filled contest from a few weeks ago between WBC heavyweight champion Deontay Wilder and challenger Luis Ortiz.
Wilder was in serious danger in the seventh round, but scored three knockdowns in total to stop Ortiz in the tenth round - to raise his record to 40-0, 39 KOs.
After his win over Parker, Joshua called out Wilder and said that he would 'spark out' the WBC champion - but Froch doubts that he's worried.
"Let's be honest, what will Deontay Wilder make of that? Will he be worried? Has that sent a message saying 'I'm coming for you?" Froch said to Sky Sports.
"I don't think he will be concerned about that performance, he won't be worried. When AJ says 'I will knock you spark out', I don't think Wilder believes him, because what you saw there does not send that message - he did what he had to do to win.
"Wilder should have been here to drum this up and drive home that he wants the fight, but unfortunately, he didn't turn up tonight. Joshua doesn't have to prove anything, he's undefeated in 21 fights with 20 knockouts. He's going home this evening with an extra belt and an unmarked face, what more can you ask for.
"It was just a perfect performance in a way, look at the state of his face, he didn't have a mark on him, and his hands aren't hurting - there are no injuries. Joshua got the job done, picking up another world title, so you can't really complain"