Froch found Dirrell to be an evasive opponent
Nottingham's WBC super-middleweight world champion Carl Froch admitted to being "dissatisfied" after his points victory over American Andre Dirrell.
Froch took the split decision ahead of Dirrell in their opening fight of the Super Six World Boxing classic but the bout failed to live up to expectation.
"I'm a little bit dissatisfied but I can only beat what's in front of me," he told BBC Radio 5 live.
"We never really stood and had a trade and got going with anything."
Froch added after his victory on Sunday: "A win's a win, he can't expect to come to Nottingham and beat me by running and holding and complaining.
"Andre Dirrell is very fast, very skilful, very slick; if you couple that together with negativity, which is what he brought tonight, you're going to get a bit of a dud fight."
Froch was rarely caught in a disappointing fight and admitted afterwards that he was not troubled as he made a successful third defence of the WBC title he won in 2008.
"I don't feel like I got hit or hurt at any stage. I felt comfortable all the way. Through the whole fight, I didn't feel hurt or jaded or fazed, it was just comfortable."
There was a nervous air as a split decision verdict was announced, but Froch was awarded 115-112 by two judges and Dirrell 114-113 by the other.
Froch, 32, added: "I disagree with the split decision, but that's professional boxing, it's subjective scoring."
Dirrell was controversially deducted a point in the 10th round for holding and although it did not prove to be decisive the American admitted to being baffled at the decision.
The 27-year-old, who had been unbeaten in all 18 previous fights, also felt he deserved to be awarded the victory.
"I thought I held him off enough, boxed him enough to get a decision," said Dirrell.
"We know where we're at, but I'm going to hold my head with pride... I still don't know why (the referee) took the point from me.
"I'm still clueless on the point for leaning on him. He'd been holding me, hitting me in the back of the head the whole time, bringing me down on one knee. He'd been rough the whole fight."