Key events 25m ago Rea defeats by Cameron by fourth-round knockout! 1h ago Chelli defeats Morrell by 10th-round knockout! 1h ago Preamble Show key events only Please turn on JavaScript to use this feature Donald McRae After a while it’s easy to get jaded when boxing is such a messy old business … and then, just when you’re least expecting it, you get to watch a stunning couple of rounds and you see a brutal kind of joy. Zak Chelli’s KO of David Morrell was as shocking as it was compelling. I went for a little walk after the fight and, at the back of the arena, away from the crowd, Chelli walked past. His face was a picture of rapture as he exclaimed that he had just done what even David Benavidez could not manage. Last year, Morrell suffered the only previous loss of his career when the imposing Benavidez beat him on points. Morrell, a former world champion, also knocked down Benavidez, one of the most feared fighters on the planet.…