Novak Djokovic kick-started his 2011 campaign with a well-earned victory on Sunday as top seeds Serbia took an unbeatable 2-0 lead over Kazakhstan in their opening match at the Hopman Cup mixed team event.
The world number three dropped the first set to the hard-hitting Andrey Golubev but slowly wore down the 23-year-old to clinch a 4-6, 6-3, 6-1 victory.
Former world number one Ana Ivanovic had earlier put Serbia ahead with a 7-6, 6-1 win over Yaroslava Shvedova.
Djokovic looked like he was suffering from jet-lag in the early stages and Golubev, who began 2010 down at world number 133, took advantage.
But Djokovic, who last month helped his country win the Davis Cup for the first time, broke in the opening game of the second set and with his confidence restored he dropped just four more games.
Ivanovic, who climbed back up to 17th in the rankings after free-falling in the first half of 2010, overcame some early- season nerves to see off Shvedova.
World number 36 Shvedova was hitting either winners or making mistakes but she still had her chances to take the first set, only for Ivanovic to pinch the tiebreak 8-6 and move ahead.
The former French Open champion then lifted her game in the second set to cruise through to a morale-boosting victory.
"I think we were both really nervous and it was so hard to hold our serves at first," Ivanovic said. "I started to serve a little bit better in the tie-break and then in the second set."
Djokovic and Ivanovic were due to take on Golubev and Shvedova in the mixed doubles to decide the final result.
