Claressa Shields shines in win over Ema Kozin, while Caroline Dubois impresses on pro debut

Claressa Shields produced a flawless performance to beat Ema Kozin to retain her WBA, WBC, IBF and Ring magazine middleweight titles in her first pro fight in the UK.

With WBO champion Savannah Marshall watching ringside and an undisputed championship fight looming in the summer, Shields was able to showcase her remarkable skills, winning practically every second of every round of the 10-round bout in Cardiff.

The three judges rightly scored it a 100-90 wide decision for the American, who despite all she has achieved was fighting in just her 12th pro fight.

Shields now looks forward to a fight with Briton Marshall who was pretending to be asleep at ringside as the contest went the distance and engaged in a shouting match with her rival champion during her post-fight interview.

«If you perform like that I'm going to wipe the floor with you,» Marshall said before security pulled the two women apart.

Despite only being 26 years old, Shields' CV already contains two Olympic gold medals and world titles in three different weights, and it remains to be seen if Marshall can dethrone the woman who proved she is every inch a world class fighter.

Kozin emerged in fine style to some heavy rock music, but she was quickly outshone by the woman who has nicknamed herself the GWOAT — the greatest women of all time.

Entering the ring to a song by Ludacris, wearing gold and red sequin shorts, Shields smiled broadly as she hopped around the canvas before seamlessly sliding on her game face.

Kozin was unbeaten in her 22 pro fights going into the fight and Shields was happy for her rival to come onto her for the first few seconds, maybe anticipating a fast start from Kozin.

But there was no such onslaught and Shields took the centre of the ring and