the sydney international (formerly known as the championship of new south wales and new south wales open, with various title sponsors), formerly sponsored as the apia international sydney from 2012 to 2017, is a professional tennis tournament in sydney, australia, that was last played in january 2019. the tournament was played annually at the sydney olympic park tennis centre in homebush. it is one of the oldest tennis tournaments in the world, dating to 1885. the tournament has not been scheduled in 2020 due to the new atp cup tournament.