O2 Arena, London - In a super middleweight showdown, John Ryder (26-4, 14 KOs) knocked out Jamie Cox (25-2, 14 KOs) in two rounds.

A grueling start with the two domestic rival trading punches at close range. Ryder had the edge as Cox was getting a little too wild. During the seconds round, Ryder landed a very hard shot to the temple, which sent Cox down on very delayed reaction.

Cox took his time getting up to his feet and he was counted out by the referee. It was a close call whether or not he beat the count - as Cox complained to the referee that he made it up to his feet in time.

Cox has now lost two out of his last three fights, as two fights back he was knocked out in four rounds by George Groves in the World Boxing Super Series tournament.

Two fights ago, Ryder lost a close split decision to Rocky Fielding. But then he came back and secured a shocking knockout victory over Patrick Nielsen, who was the favorite, in five rounds last October.

Ryder is now hoping to get a world title shot and they appear to have instructed promoter Eddie Hearn to get them a crack at WBA "regular' champion Tyron Zeuge of Germany.

Also in action, Germany-born Alabaman super-welterweight Money Powell IV stopped Hungarian Mark Krammerstodter in the fourth and final round to move to 7-0. Powell IV had scored a knockdown from a body shot shortly before the finish.