72 tennis players in lockdown after virus cases on flights

Spain's Rafael Nadal, center, arrives at Adelaide Airport ahead of the Australian Open tennis championship, Adelaide, Australia, Thursday, Jan. 14, 2021. Arriving players will serve a 14-day quarantine period ahead of the first Grand slam tennis tournament that is set to get underway on February 8 in Melbourne. (Morgan Sette/AAP Image via AP)

The number of players in hard quarantine swelled to 72 ahead of the Australian Open after a fifth positive coronavirus test was returned from the charter flights bringing players, coaches, officials and media to Melbourne for the season-opening tennis major.