Barnsley boxer Callum Simpson suffers first defeat as titles lost to Troy Williamson in Leeds
Troy Williamson caused a major upset to hand Barnsley's Callum Simpson the first defeat of his professional career.
Simpson's British, Commonwealth and European super-middleweight titles were on the line at the First Direct Bank Arena in Leeds and all were claimed by Williamson.
Simpson spent much of the fight on the back foot as Williamson took control of the affair. The former eventually cracked under the pressure in round 10, being repeatedly knocked down.
A fourth knockdown proved to be the final straw as the referee stopped the contest and awarded victory to the underdog Williamson.
"I thought I was winning most of the rounds," said Simpson. "It was always going to be a tough fight with Troy and I got caught with a very good shot,.
"I want to say thank you to everyone who turned out tonight and is still here now. I have just been put down and everyone is still here, cheering my name. I will not forget that.
"We've got a rematch. I will get back to work, come back and correct this. Thank you for sticking with me. I will be back."
Williamson, meanwhile, insisted the victory had changed his life. The win came after a run of four losses across six fights.
He said: "This fight has changed my life. I have always wanted my children to have a better upbringing than I had.
"I deserve that tonight with a performance of a lifetime. I have changed mine and my kids' lives for the better."