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.

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, ...

appeared to be sulking during the second set after a code violation for swearing from the British umpire James Keothavong. He hit a couple of feeble shots and played almost in slow motion while ...

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

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 ...

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 ...

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 ...