By Tom Victor When the Australian Open gets underway on January 14, reigning champions Novak Djokovic and Aryna Sabalenka will be joined in the main draw by players who have battled through several qualifying rounds just to take their place in the main draw. Every qualifier’s dream is to repeat the success of Emma Raducanu, who came through three preliminary rounds before entering the main draw and going all the way at the 2021 US Open. Even that main draw spot and a shot at a giant-killing can be enough motivation, though, with Taro Daniel doing just that in Australia in 2022 as he knocked An…