Savannah Marshall speaks about the fight with Claressa Shields.

The British middleweight Savannah Marshall, who lost a unanimous points decision to the three-time Olympic gold medalist in Detroit last month, believes that Claressa Shields’ awkward southpaw stance will make it difficult for potential opponents to accurately prepare for the WBA and IBF champion.

“I think she’ll have a hard time finding sparring partners because her style is quite unique,” Marshall told Sky Sports News. “She’s a tall southpaw, which not a lot of people are, so it will be hard to find someone who can replicate that come fight night."

“I think she has the potential to unify all the belts and become the undisputed champion, but it will be hard to find opponents willing to fight her.”

Marshall, who is promoted by Eddie Hearn, is determined to use the experience of fighting Shields as a springboard to further success in the professional ranks. “It was a great experience for me,” she said. “I learnt a lot from the fight and I know what I need to work on. I want to be fighting for world titles again as soon as possible. I believe I’m good enough to be at that level and I’ll be working hard to get back there.”

The pair met in the amateur ranks back in 2012 with Marshall coming out on top. But since then, both women have gone on to enjoy stellar professional careers. Shields is unbeaten in 10 fights and is the reigning WBC, WBO and IBF middleweight champion.

Marshall, meanwhile, has won all seven of her professional bouts, six of them inside the distance. The 30-year-old from Hartlepool was last in action in March when she stopped reigning WBO super-welterweight champion Hannah Rankin inside five rounds to claim the world title.

And now she has her sights set on revenge against Shields and becoming a two-weight world champion. “I feel like it’s unfinished business,” Marshall told Sky Sports. “We both had very good amateur careers. We both went to the Olympics, we both won medals, but I feel like she has a professional loss that she owes me."

“It would mean everything (to become a two-weight world champion). It would just top off what’s been an unbelievable year and an unbelievable journey. I started off the year not even in the top 15 and now I’m headlining one of the biggest boxing shows of the year against one of the best female fighters in the world, so it’s been an unbelievable 12 months.”

Marshall is relishing the chance to prove herself against one of the best in the business and believes she has what it takes to come out on top. “She (Shields) is a great fighter, she’s very, very good, but I just feel like styles make fights,” she said.

“I just feel like I have the style to beat her and I believe that on September 10, I will become a two-weight world champion.”