jannik sinner novak djokovic 8 SINNER AUSTRALIAN OPEN jannik sinner novak djokovic 7 novak djokovic australian open 1 SINNER AUSTRALIAN OPEN jannik sinner novak djokovic 1 novak djokovic australian open novak djokovic australian open jannik sinner novak djokovic 6 jannik sinner novak djokovic 2 jannik sinner novak djokovic 3 jannik sinner novak djokovic 4 jannik sinner novak djokovic 5 novak djokovic 1