Bad Left Hook will be here with live, round-by-round coverage, scoring, and analysis of Frank Warren's "This Is It" event from the O2 Arena in London.

It might not be the last fight of the show, but the true main event is now without question the heated prospect clash for the British super middleweight title between James DeGale (10-0, 8 KO) and George Groves (12-0, 10 KO). They're two of the best 168-pound prospects in the sport (maybe the two best), and have had beef since their days as amateurs, training out of the same gym. Groves beat DeGale in the amateurs, but the odds are against Groves in the pros.

The original main event was supposed to be Nathan Cleverly going after his first major title as a professional against Juergen Braehmer, but Braehmer "shockingly" pulled out of the fight on Wednesday. Tony Bellew stepped in, but then he was removed due to weight issues. So now we have Cleverly against 34-year-old Aleksy Kuziemski, the level of fighter we already know Cleverly can handle without much trouble.

Also in action on the show will be Bad Left Hook favorite Frankie Gavin (9-0, 8 KO) taking on veteran Young Mutley (29-5, 14 KO). The show is live on Sky Box Office starting at 3 p.m. EDT, and then the U.S. broadcast of DeGale vs Groves and Cleverly vs Kuziemski starts on Epix and EpixHD.com at 4 p.m. EDT.