Watson's miserable run goes on

07 October 2013 04:12:51 EST

Heather Watson's slump down the world rankings looks set to continue after she was beaten by Monica Puig at the Japan Open, a tournament she won 12 months ago.

The 21-year-old, who has already slipped from 49th to 92nd in the world rankings, became the first British woman to win a WTA singles title since 1988 when she beat Chang Kai-chen in last year's Japan Open final.

However, she suffered a 6-4 6-4 loss to the seventh seed Puig in Osaka, dropping her serve five times during the encounter.

Meanwhile, Serena Williams clinched the 56th WTA title of her career by beating Jelena Jankovic 6-2 6-2 in the final of the China Open.

I'm really happy to be here holding the trophy.

Serena Williams

It was the world number one's tenth WTA title of her career but was not as straightforward as the final scoreline suggested as she struggled with a back injury for long spells.

"I'm really excited - I didn't think I'd win this tournament starting out, so I'm really happy to be here holding the trophy," Williams said after her victory. "Congratulations to Jelena for such a great tournament as well.

"I really love tennis so much and it's fans like the ones here in China who are so exciting to come to. The fans make me want to play, they're so great here, so coming here is such a great opportunity."

Laura Robson is 1212/1 to win this week's Japan Open, while Madison Keys can be backed at 1212/1 to triumph and Sabine Lisicki at 1212/1.

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