Kaia Kanepi of Estonia made an impressive return to the WTA after a break of three and a half months, as she beat Korean wildcard entrant Sung-Hee in straight sets with a 6-1 6-0 scoreline and reached the second-round at the KDB Korea Open.

Kanepi enjoyed a decent success during the first half of the season by claiming titles at Brisbane and Estoril. She also reached the quarterfinal at the French Open, but her progress was halted by nagging injuries. She also missed out Wimbledon, the Olympics and the US Open.

After the match, Kanepi said, "I was very nervous in the beginning because I hadn't played any matches for the last three months. The first game was tough, but after I won that one I felt much more comfortable during the match."

On the other hand, top-seeded Caroline Wozniacki beat Arantxa Rus in just 62 minutes, 6-1 6-2. "I definitely played better today than I have for a while," Wozniacki said in her post-match interview. "I've been practicing hard and I'm happy to see the results from that. I'm happy to be through. I'm just taking it one match at a time."

She further added that "I was No.1 for basically two years but things change - you always go up and down the rankings. I'm still young, so there's still going to be great wins and losses. It's all just part of the game. All I can do is try my best. At the end of the year you see your ranking, and that's it."

In other matches, eighth seeded Ekaterina Makarova beat Polona Hercog in straight sets, 6-4 6-1 and seventh seeded Klara Zakopalova fought hard from 5-3 down in the third set to rally past Garbiñe Muguruza, 6-4 4-6 7-6(1).