Rob McCracken (Froch's coach) said at the post fight press conference that Groves had a difficult style and they knew it was going to be a tough one all along. The thing that annoyed me was that the commentators seemed so surprised about Groves after the knockdown that they didn't give Froch any credit at all for the first 6/7, when in reality after watching it again he actually won probably 3 of the rounds. From round 6 onwards Froch started landing and Groves to me looked in trouble every time Froch started putting the shots together on him and couldn't consistently compete toe to toe.
As for the stoppage I can understand where the ref was coming from, Froch landed a left 4 CLEAN straight rights (and Groves was also still hurt from the attack before). Groves legs dipped once and he did actually FALL into Howard after the 4th whilst Froch was already lining up more shots.
Don't think Froch got anywhere near the credit he deserved, ask any super middleweight to take the shot he did in the first and see if he gets up at all, let alone straight away. Two judges had Groves 1 round up so after that the fight would have been even... could anyone really see Groves really being able to sustain his work or even survive to the end where Froch is so renowned for coming into fights?!
All that said.. I hope Froch calls it a day in 2014, he's done a lot for British boxing but the amount of mistakes he was making and how slowly he started was very worrying.