Hint: Maria is already out.
Answer: The Australian Open
The Australian Open is the first of the four Grand Slam tennis tournaments held each year. The tournament is held each January at Melbourne Park. The tournament was held for the first time in 1905 and was contested on grass from then up to 1987. Since 1988, the tournament has been held on hard courts at Melbourne Park. Mats Wilander is the only male player to have won the tournament on both grass and hard courts.
