SHEFFIELD, England - American heavyweight Deontay Wilder remained unbeaten after knocking out former Olympic champion Audley Harrison in the first round at Motorpoint Arena on Saturday.
Harrison fell in a neutral corner from the first meaningful punch of the bout. Wilder kept flailing at him before referee Terry O'Connor belatedly stepped in and called it off after 1 minute, 10 seconds.
Wilder, the 2008 Olympic bronze medallist, improved his pro record to 28-0 (28 KO), while Harrison, who briefly held a minor world title nine years ago, fell to 31-7 (24 KO) and even admitted it was likely the end of his patchy career.
"I've got to be realistic, I'm 41. It's going to be hard to get opportunities like this on the big stage again," Harrison said.