Olympic champion Zheng Qinwen made the most of the indoor conditions under a roof at Rod Laver Arena to advance to the second round of the Australian Open in straight sets while it poured with rain outside.

Ash Barty finished 2022 the way she started it.

Dennis Ralston, a five-time Grand Slam doubles champion who was one of the initial players signed to the professional World Championship Tennis tour in the 1960s and a member of the sport's Hall of Fame, died Sunday. As a singles player, Ralston lost to Spain’s Manuel Santana in three sets in the 1966 Wimbledon final. He paired with Rafael Osuna of Mexico to win Wimbledon in 1960 as a 17-year-old. He and fellow American Chuck McKinley won titles at the U.S. national championships in 1961, ’63 and ’64. The WCT tour helped commercialize the sport, instituting a tiebreaker system and emphasizing its prize-money structure and a bonus pool to attract top players.