Heather Watson suffers early exit in San Diego

Britain's Heather Watson has been knocked out in the second round of the WTA Carlsbad tournament in San Diego by Taiwan's Chan Yung-Jan.

Watson, who recently reached a highest-ever ranking of 71st in the world, went down 3-6 6-7 to the world number 161.

The 20-year-old won her first WTA title last week with a victory in the women's doubles at Stanford.

Yung-Jan will face either Jelena Jankovic or Melinda Czink for a place in the fourth round.