British number one Heather Watson has lost in the second round of the Pattaya Open to unseeded Anastasija Sevastova.
The 20-year-old eighth seed lost a tight first set but fought back to comfortably take the second.
However, her 22-year-old Latvian opponent finished strongly, recording a 7-6 (7/4) 4-6 6-2 victory in two hours 26 minutes.