British number one Heather Watson progressed to the second round of the Pattaya Open with ease after Hungary's Timea Babos was forced to retire in the second set.
Watson climbed to number 40 in the WTA rankings after reaching the third round of the Australian Open, where she lost to Agnieszka Radwanska, and she continued to impress in Thailand, dropping only one game.
The 20-year-old eighth seed had brushed Babos aside 6-1 in the first set and was cruising 3-0 in the second when Babos retired hurt, handing Watson a second-round meeting with Anastasija Sevastova of Latvia.