Novak Djokovic gets warm Australian Open welcome, then wins

Novak Djokovic of Serbia reacts after defeating Roberto Carballes Baena of Spain in their first round match at the Australian Open tennis championship in Melbourne, Australia, Wednesday. (AP Photo/Aaron Favila)

MELBOURNE, Australia — The supportive signs and dozens of Serbian flags and loud chants of Novak Djokovic’s nickname filled Rod Laver Arena, providing a warm welcome marking his return to the Australian Open — a tournament he has dominated in the past but one he could not enter a year ago.