WORLD lightweight champion Caroline Dubois will keep it clean and professional in Sunday’s grudge fight with Terri Harper, but warned she will not be “brought down” to her rival’s level.

Dubois (12-0-1, 5KOs) and WBO belt-holder Harper (16-2-2, 6KOs) have traded verbal exchanges throughout the build-up to the bout at London Olympia.

Harper shoved WBC champion Dubois in a tense face-off on Wednesday, but the 25-year-old vowed to keep her cool on a landmark all-women card being put on by the promotion company of YouTuber-turned-boxer Jake Paul.

Speaking ahead of those encounters, Dubois told PA: “I don’t feel any personal vendetta against her so it’s not personal for me, it’s business.

“It is a rivalry that is completely professional and for me I am not going to let anything ever get personal between me and her because we are not on the same level.

“When I look at her as an athlete, as a boxer, we are just not on the same level. I am not going to bring myself down to her level and make it personal.

“I am going to keep it clean, keep it professional and when I step into the ring, I will show her there [are] levels in boxing and I can’t wait.”

London-born Dubois, the younger sister of heavyweight Daniel Dubois, is excited to fight in her home town and on a stacked fight card, which includes British world champion Ellie Scotney.

Dubois added: “London has a special part in my heart and it is crazy. It’s a full circle and I want everyone to turn up and show their support for women’s boxing, but more importantly boxing.

“If you call yourself a boxing fan, come down and show your support because it’s going to be a great night. There are so many world title fights on the card and good fighters on the card.”