Spectators booed as the 37-year-old Djokovic walked off toward the locker room, and he stopped, turned around and responded by giving two thumbs-up.

Alcaraz says he doesn't have many regrets about the Djokovic loss. "I really wanted to win the tournament and felt I was able ...

Novak Djokovic is 37 and was forced to stop playing because of an injury at two of the past four Grand Slam tournaments.

Novak Djokovic was forced to retire from his semifinal match at the Australian Open, which resulted in fans booing him as he ...

The great Aussie turned 40 in 1974 but still played at a high level. Rosewall toppled John Newcombe at Wimbledon and the US ...

Andy Roddick discussed the recent Davis Cup incident that happened during the Qualifiers Round 1 tie between Chile and Belgium. Belgium’s Zizou Bergs won the match after he collided with Cristian ...

Novak Djokovic and Alexander Zverev both responded after Djokovic was booed by fans after retiring during their Australian ...

Djokovic is only interested in tennis' biggest prizes. He still has the game to win them, but at age 37 his body is letting ...

Novak Djokovic has retired from his Australian Open semifinal against Alexander Zverev after losing the first set in a ...

Belgium clinched a controversial win in Sunday’s match in the Davis Cup Qualifiers 1st Round tie against Chile, following ...

Novak Djokovic's bid for 11th Australian Open title ends after a muscle tear in his left leg. He says injury happened during ...

On Friday, Djokovic battled World No. 2 Alexander Zverev for 81 minutes in their semifinal match. However, Djokovic immediately retired after losing a 5-6 tiebreak in the first set.