Which Australian arena is named after a player who completed two calendar-year Grand Slams?

The Australian arena named after a player who completed two calendar-year Grand Slams is Rod Laver Arena.

Rod Laver completed the men’s singles Grand Slam twice, winning all four major tournaments in a single calendar year in 1962 and again in 1969. His second achievement came during the Open Era and remains one of tennis’s most difficult records. Laver is the only man to have completed two calendar-year Grand Slams in singles.

The arena is the centerpiece of Melbourne Park and the main venue for the Australian Open, the first Grand Slam tournament of each calendar year. It was originally known as Centre Court and was renamed Rod Laver Arena in January 2000. The building has a retractable roof, a feature that helps protect Australian Open matches from Melbourne’s heat and rain. Margaret Court Arena is also named for a legendary Australian player, but the clue’s reference to two calendar-year Grand Slams points specifically to Laver.