British number one Johanna Konta has beaten Estonian Anett Kontaveit 6-3 3-6 6-4 in the first round of the Abierto Mexicano Telcel in Acapulco.
In her first match since reaching the Australian Open semi-finals last month, world number 26 Konta raced 5-1 ahead.
She was broken twice as 20-year-old Kontaveit, ranked 91, levelled in the first meeting between the players.
Konta, 24, also lost her first two service games in the decider but finally won in an hour and 44 minutes.