Daniel Dubois KOs Anthony Joshua to retain IBF heavyweight crown

(Photo credit: Aaron E. Martinez/American-Statesman / USA TODAY NETWORK)
Daniel Dubois dominated favored challenger Anthony Joshua with a fifth-round knockout in a successful first defense of his IBF heavyweight title on Saturday in London.

Dubois knocked down Joshua, a two-time world champion, four times in the first four rounds before his right hand to the jaw dropped Joshua and referee Marcus McDonnell counted him out