Anthony Joshua, moving toward the possibility of becoming the first unified heavyweight champion since countryman Lennox Lewis, agreed on Sunday to fight Joseph Parker on March 31 in Cardiff, Wales.
The bout, at Principality Stadium, will have Joshua’s World Boxing Assn. and International Boxing Federation belts on the line, along with the World Boxing Organization belt of New Zealand’s Parker (24-0).
England’s Joshua (20-0, 20 knockouts) won the WBA belt by virtue of his stirring 11th-round technical knockout of former long-reigning heavyweight champion Wladimir Klitschko in front of 90,000 at Wembley Stadium in London.
“We all know what happened last time I was in a...