BELGRADE, Serbia -- Serbia's Novak Djokovic, playing his first match since withdrawing in Dubai with infections in both eyes, easily beat Kazakhstan's Aleksandr Nedovyesov as the countries played to a 1-1 tie after the first day of their Davis Cup first-round matchup.
The top-ranked Djokovic, who seemed bothered by a sore shoulder, faced only one break point in his 6-1, 6-2, 6-3 victory.
"I lost some of the momentum in the third set, but it was enough to win the match," Djokovic said.
Kukuskhin, who dominated Troicki throughout the match, says his victory could pave the way for a surprise win against the 2010 champion.
In other Davis Cup first-round ties:
Simon trailed 5-0 in the opening set before rallying past Pospisil 7-5, 6-3, 6-3 in Baie-Mahault, Guadeloupe.
The 19-year-old Coric recovered from a two-set deficit to force a decider but lost as 16th-ranked Goffin put Belgium, last year's runner-up, back on track with a 6-3, 6-2, 2-6, 3-6, 6-3 victory.
The 122th-ranked Coppejans offered strong resistance in the first set but could not hold onto a 5-2 lead. He served for the set at 5-4 in the opener, and led 4-2 in the third set but Cilic, who hit 16 aces, used his greater experience to prevail on the red clay of the Country Hall.
* Czech Republic 1, Germany 1: Tomas Berdych defeated Davis Cup rookie Alexander Zverev, needing 4 hours, 20 minutes to prevail 7-6 (6), 1-6, 4-6, 7-6 (5), 6-4 as the countries finished all even Friday in Hannover, Germany.
Dustin Brown, set to play his second tie for Germany, was due to team up with Philipp Petzschner against Radek Stepanek and Jiri Vesely in Saturday's doubles, though changes are permitted and even expected. Kohlschreiber and Berdych could feature again.
The Associated Press contributed to this report.