Djokovic and Sabalenka Set to Defend Titles at Australian Open

Novak Djokovic and Aryna Sabalenka are set to defend their titles at the Australian Open. Djokovic faces an 18-year-old qualifier, while Rublev narrowly escapes a difficult match. Sinner overcomes a tough opponent, and Krejcikova survives a challenging match. Sabalenka, a rising star, is set to play a qualifier in an evening session. Former champions Caroline Wozniacki and Matteo Berrettini withdraw from the tournament due to injuries.