Groves won of course, but DeGale is all out for a revenge in a bumper bill that also boasts world-title hopeful Nathan Cleverly.

The double header will be witnessed by a full house at the 02 Arena on May 21st and is of course, live on Sky Box Office HD.

As ever, the esteemed Sky Sports team of Jim Watt, Glenn McCrory, Johnny Nelson and Barry McGuigan will be on hand to give you their expert opinions throughout the build-up and on fight night itself.

But first skysports.comsat the panel down to get their thoughts and of course, their predictions...

SKYSPORTS.COM: It's been a chaotic couple of days but one thing we do know is James DeGale and George Groves still don't like each other! Will that come into play once the bell sounds? It's prediction time boys, how will it go and above all, who wins?

BARRY: DeGale keeps saying four rounds but I don't see it like that. If you look at DeGale he is not a destructive one-punch hitter; he has power but he normally knocks you out by beating you up and wearing you down. You've got to ask: is George Groves' chin any weaker than Paul Smith? I don't believe he is because Kenny Anderson is a tremendous puncher and he got back up from his best shot. Is he physically less robust than Smith? No. And is he a harder puncher a Smith? Yes, he's a much bigger single-punch hitter. He's a big, strong super-middleweight who is going to be very lively, very dangerous early on in the fight, so I'm not sure how DeGale sees him knocking him out in the first four rounds. Also I think that Groves might just decide to back off; I don't think he'll necessarily go looking for him because that's what DeGale wants, that's why he's saying all these provocative things.

JIM: I don't see any point in Groves starting slowly. His best asset is the warrior instinct he has and if he stands off and makes this into a boxing match, you have to fancy DeGale strongly. He has that southpaw stance, he's very good at long-range, so Groves has got to make sure this is his kind of fight - that means one where heart, courage, strength and fitness come into play.

JOHNNY: Like Barry I'm sure George will steer clear early on, be smart. I think he wants this to go the longer distance and then try and jump on DeGale when he tires, but he will also throw a couple of big shots in, just to fire it up now and then. DeGale does box better going forward, but not necessarily when he has to go looking for someone. He is good at boxing on the back foot and getting out of the way, but not brilliant; Paul Smith put pressure on and clipped him a couple of times and it was not like 'Wow! You can't touch this kid with a bag of rice!'. His best work is done on the front foot but the danger is the red mist is still there and I have no doubts that early on at least, we will see an emotional James DeGale. It may take some time for him to settle just because there is so much bad blood and he'll be so scared of losing.

GLENN: I see this differently; Groves has got to take the play away from DeGale and the best way to do that is hurt him, hit him hard on the chin. He can't outbox him, he can't look to move and dance round him, he's too smart, slick and refined for that. But he does have the punch to make something big happen. He needs to make a statement; be bold and try and surprise DeGale. Maybe jump on him in the very first round, throw a hundred punches, anything that he's not expecting.

BARRY: He's a big, strong super-middleweight who is going to be very lively, very dangerous early on in the fight, so I'm not sure how DeGale sees him knocking him out in the first four rounds. Also I think that Groves might just decide to back off; I don't think he'll necessarily go looking for him because that's what DeGale wants, that's why he's saying all these provocative things. I think Adam Booth and Groves will have different ideas. It will be very cagey for the first four rounds and then he'll look to hurt him and if he can hurt him, jump on him later in the later rounds. But that's where the difference is; I don't think DeGale will allow himself to be caught.

JIM: There's no doubt that DeGale has adapted to the pro game better than Groves. Groves still has flaws, like we saw against Anderson and although that was always going to be a testing fight and he should be commended for his courage, that worries me going into this. He is too easy to hit, he makes too many mistakes and does have that leaky defence... still. We said it after his first professional fight and I don't think he's addressed it. Yes he has got a fantastic will to win, he is talented when he puts his punches together, he has got the moves offensively, it's just those defensive flaws that are the problem.

JOHNNY: In reality George needs to rely on James making that sort of mistake because if he doesn't he won't get near him. Maybe that four-round prediction is just to try and get Groves to fight toe-to-toe, pick him off and beat him, but I don't think it was a pre-conceived plan, I think it's just something he picked out there and then. It's a dangerous game though, because Groves has got bottle; he's marked up and bruised from sparring so while that is the best sign that his preparations have gone perfectly, it does show us he's a tough kid, who will keep coming.

GLENN: Where George has come on leaps and bounds is how he's dealt with this fight. When they've been together he's always looked the winner to me. OK, talking does not win you fights, but he's handled himself so well and I just wonder whether we will see that in the ring. James seems to have pushed himself so far in trying to get under Groves' skin, I am not sure he will be able to leave that behind. I know they have history and a lot's been made of it and that's what grudges are all about, but in the professional ring DeGale has impressed far more than Groves. All the way through. Groves should get credit for coming through that do-or-die war with Kenny Anderson, that puts a big tick on his box, but DeGale looked world-class against Paul Smith.

BARRY: But DeGale does have a very big ego - and why wouldn't he have? He's an Olympic gold medalist - he thinks he's the best in Britain. Jim McDonnell keeps him telling everyone he's going to be greatest British fighter of all time and when you have all these people patting you on the back, it's difficult to keep a perspective on things. But ultimately I think he's sensible and couple of left hooks or right hands from Groves will soon bring him back to his senses. If he becomes emotional and starts to get aggressive, Groves can catch him - and then it will really become interesting.

GLENN: That's why I have to say I do not rule out a Groves win because he is a talented kid in his own right. DeGale is a pretty rounded fighter but let's be honest, boxing is not all about skill. It's about egos and pride. They should be left in the dressing room, or better still at home because this is a business, but there is so much bad blood in this fight, I can easily see DeGale doing something stupid, just to get one up on his man. He could leave his hands low, stick his tongue out and end up getting clubbed on the chin - I wouldn't be surprised if that happened at all. To me he looks like he needs to be in with a top-class fighter already, but the one thing you can't get away from is styles make fights and personalities clash. Did Alan Minter win all his fights with Chris Finnegan? A lot of people say he didn't but Finnegan brought the best out of him and kind of had his number; Muhammad Ali struggled with Joe Frazier and you have to wonder whether Groves has DeGale's.

JOHNNY James obviously still has nightmare about that amateur loss and he will know he got it wrong that time, so he shouldn't do it again. The truth is he has the skill, the speed and the movement to beat Groves but I don't like all this four round business because it might lead him to stand there and get in a tear-up - and we know that's what Groves is good at. Trust me you could walk into any pub in the East End of London and start trading blows with any bloke and sooner or later he'll catch you and knock you out, so all that macho crap has to go out of the window. He needs to use the skills that have got him where he is.

JIM: There are some fights, like football matches, where the formbook goes out of the window but you have to take form into account when analysing them - and DeGale has done everything asked of him as a pro, well within himself. He was terrific against Paul Smith and I don't think Groves has produced anything close to that level of performance - and we all thought Carl Dilks would be a real test for him, but he just wiped him out. I think this goes to form.

BARRY: I don't think DeGale will allow himself to be caught. He'll box very carefully, he'll move side-to-side, he'll switch from orthodox to southpaw and try and catch him out. I think it would be counter-productive and extremely dangerous for DeGale to go looking for him because there's every chance he could walk onto one himself. He'll try to take the sting out of groves with his jab and quick counter punches and tire him out. The he'll step up the pace and start sitting down on his shots and hitting with more power. That's how I see it unfolding.

JOHNNY: But if he can avoid losing his rag and take the fight to Groves on his terms, then he has the better boxing ability, there's no doubt about it. I wouldn't mind seeing either of them win, because they are two smashing kids, but if he can keep his head it has to be DeGale. I do think though Groves is tough, so I think we're looking at DeGale on points here.

GLENN: Agreed. He is by far the better boxer and if he doesn't go crazy and if he has his gameface on, I think he will come through any difficult moments. Groves' best chance is if DeGale does something silly and loses concentration but if he doesn't, I can see him winning by a stoppage in the 8th or 9th round.

BARRY: Groves really needs DeGale to make a mistake; he's hoping DeGale will come and engage him and knock him out. Groves is an improving fighter but I don't think he's made the same improvements DeGale has. But he is a big puncher and that will mean this fight is going to be very competitive for the first half-dozen rounds or so. I think it will be cat-and-mouse at first, then he'll step up and pick him off and stop him around the ninth or 10th round. But here's hoping fore some drama before then!

JIM: I just don't see him taking any silly punches, I don't see him losing concentation and veering of the fight plan. In fact, if anyone is likely to get hot-headed and annoyed with himself and lose the plot it will be Groves. This could well go all the way and it might just be a case of DeGale picking him off at long range all night long - and I think he'd be happy to do that. I see Groves as the one who wants to knock him through the ropes, even if it is DeGale who has been doing all the mouthing off. If the knockout is there he will go looking for it but I can see him settling for a points win here.