By Edward Chaykovsky

IBF welterweight champion Kell Brook (36-1, 25KOs) has yet to give up on his division. Brook will resume training to see if he's still capable of making the welterweight limit of 147-pounds.

Two weeks ago he moved up by thirteen pounds to challenge middleweight king Gennady 'GGG' Golovkin and was stopped in the fifth round at the O2 Arena in London.

If Brook decides to stay at 147, he will have to make a mandatory defense against unbeaten Olympian Errol Spence.

At the same time, Brook admits his body is better suited for the junior middleweight limit of 154-pounds - where he wants to challenge newly crowned WBO world champion Saul 'Canelo' Alvarez (48-1-1, 34KOs). Canelo captured the title this past Saturday night with a knockout of Liam Smith.

Brook told Sky Sports News HQ: "I think 154lbs would be more my weight class. I need to get back training and see if I could make 147lbs healthily - that's also a possibility because I'm a world champion at 147lbs. I'd love that fight with Canelo. I just want to be in those big fights. I had a taste with the Golovkin fight and the attention around it is exciting for a fighter to be in.

Brook has an operation set for Friday to deal with his fractured right eye socket, an injury sustained in the second round of his fight with Golovkin.

"I've got an operation this Friday. I went down to see the surgeons and they wanted to plan it right and look into everything. They're looking to put a titanium plate in the eye but they're looking at other materials. They're not rushing it but it looks like this Friday. I'm more scared of getting put to sleep than I was of getting in with Golovkin," Brook said.

"They said it'd be a good few months before I can start sparring again. It's a break so you're looking at six to eight weeks before sparring. I only start sparring when I'm four weeks away from a fight anyway. I'm going to make sure I listen to them, take things slowly and don't go faster than I should."