Shannon Ryan, who is managed by Anthony Joshua's 258 company, signed promotional terms with Eddie Hearn and Matchroom Boxing in April 2023.
Ryan is sponsored by former employer O2 and has moved to 6-0 since turning professional in March 2022, boxing exclusively in the London area in that time.
Kaos picked up her fifth professional win with a punch perfect performance on her Matchroom debut in June 2023, going the distance in her first eight rounder.
Ryan followed that up with a similarly eye-catching performance in September on the undercard of Jai Opetaia-Jordan Thompson at the OVO Wembley Arena.
Ryan was due to face Emma Dolan for the British & Commonwealth Super Flyweight Titles in February 2024 but Dolan was forced to withdraw from the fight through illness just two weeks before. Jasmina Zapotoczna was a late replacement for that fight, with the WBA Intercontinental Title instead on the line. Ryan survived a nasty cut from a clash of heads midway through the fight to pick up her first pro title before calling out Dolan in her post-fight interview.