Viktor Troicki | TENNIS.com

Players react to Novak Djokovic's drive for new player union

Djokovic didn't want the meeting to draw too much attention, but it is an important issue.

Jelena Ostapenko upset by Ekaterina Makarova in Sydney

Conditions were brutal as fifth-seeded Kristina Mladenovic retired due to the heat.

Richard Gasquet, others announce coaching changes

Gasquet will be coached by both Fabrice Santoro and Thierry Tulasne.

Djokovic beat Albert Ramos-Vinolas, 6-3, 6-4, 6-2, and Troicki defeated Carreno Busta.

Davis Cup: Serbia advances with 3-0 sweep of Russia

They will play Spain in the quarterfinals.