TIANJIN, China – Svetlana Kuznetsova kept up her pursuit of a place at the BNP Paribas WTA Finals Singapore presented by SC Global with a hard-fought 2-6, 6-4, 7-6 victory over Naomi Osaka.

The Russian was able to break the 19-year-old’s serve in the first and fourth games of the opening set but failed to hold serve a single time as the World No.42 raced ahead.

However, the 2009 French Open champion rallied in the second, which was on serve until the seventh game, when Kuznetsova moved up a break. Osaka recovered the deficit in the following game but was broken once more and the Russian held her nerve to level the match.

The deciding set was closely contested, without a single break of serve, although Osaka squandered two break points. In the eventual tie-break, Kuznetsova’s superior experience told and she was able to take two points on the youngster’s serve and win it 7-3 to book her spot in the semifinals.

Kuznetsova will meet Alison Riske in the last four after the American overcame Xinyun Han, 6-3, 6-3. The match was a frantic affair in which both players struggled on serve but Riske got the crucial break to move 4-2 up in the opener and closed it out to get a crucial advantage.

The match moved at much the same pace in the second set, with only three games held overall; two of them were by Riske and it was the 26-year-old who advanced.

Monica Puig’s run in the tournament, meanwhile, came to an abrupt end at the hands of World No.65 Danka Kovinic.

The first set was a tight affair, in which the sole break came when the Puerto Rican squandered a 40-15 advantage when serving at 1-1. The Montenegrin held firm from there, closing out the set without any trouble.

Kovinic stormed into a lead in the second, breaking Puig in the opening game and consolidating her advantage by repeating the trick to go 4-1 ahead. Puig enjoyed a moderate recovery, halving the deficit, but was broken once more and crashed out of the tournament.

Kovinic will play Peng Shuai in the last four after the World No.182 received a bye thanks to Agnieszka Radwanska’s withdrawal.