From the opening round of competition, two teams from each league advance to the semi-final round with four teams winning a spot in the final round of competition.
在第一轮的比赛中,每个联盟将会产生两个优胜小组进入半决赛,最后将有四个参赛队伍取得进入决赛的资格。
Jack Kramer of Los Angeles smashes a return shot during his semi-final round match against Dinny Pails of Australia in the men's singles championship at Wimbledon, July 4, 1947.