James Keothavong. "This is not my day. What can I do?" He just got hit in the head by a Troicki's return. "Obviously it was tough. It felt like I was playing at another tournament," Kyrgios said.

Novak Djokovic of Serbia shakes hands with chair umpire James Keothavong after retiring from his semifinal against Alexander Zverev of Germany at the Australian Open tennis championship in ...

An injured Novak Djokovic shakes umpire James Keothavong's hand after dropping out of his semifinal match vs. Alexander Zverev Friday in the Australian Open in Melbourne. (AP photo) MELBOURNE, ...

Zverev ventured toward chair umpire James Keothavong and pointed at the fan, who was sitting in a section behind him. "He just said the most famous Hitler phrase there is in this world," Zverev ...

An injured Novak Djokovic quit after dropping the first set of his Australian Open semifinal against Alexander Zverev on Friday.

Matte’!” amplified by megaphones and accompanied by drums and trumpets. Chair umpire James Keothavong repeatedly asked spectators to stop whistling as Kokkinakis was serving. “We're in Spain ...

MELBOURNE, Australia — Spectators booed an injured Novak Djokovic as he left the court in Rod Laver Arena after quitting one set into his Australian Open semifinal against Alexander Zverev on ...

Novak Djokovic of Serbia shakes hands with chair umpire James Keothavong after retiring from his semifinal against Alexander Zverev of Germany at the Australian Open tennis championship in ...