Ryan Doyle ripped the Commonwealth featherweight title away from Reece Bellotti with a stunning stoppage win.
The Mancunian dropped the dazed Bellotti with a barrage of punches in the fourth round and referee Howard Foster quickly waved it off, despite the protests of the 27-year-old, who also lost his unbeaten record at York Hall.
Bellotti slipped punches confidently from head to body as he sized up Doyle in the first round.
But he was drawn into a close quarters battle in the second and was caught by a crisp left hand from Doyle.
There was more success for Doyle in the third as he fired back with sharp counters, although Bellotti tried to regain command with a string of right hands.
More recklessness from the Watford man was punished by Doyle's straight right hand in the fourth round, and his reign was brought to a sudden halt in the fifth.
A looping right left Bellotti on unsteady legs and he wilted by the ropes after a follow-up barrage from Doyle, prompting the swift intervention of Foster.