Ward wins rematch

Andre Ward stopped Sergey Kovalev in round eight to win their rematch and retain his unified lightheavyweight world boxing championship title. The 33-year-old American extended his perfect career record to 32 wins from 32 in an impressive performance, albeit with a controversial ending, at the Mandalay Bay Hotel and Casino in Las Vegas. After wobbling Kovalev midway through the eighth round with a straight right hand, Ward finished the job with a series of powerful body shots – albeit with a suspicion of low blows.