Britain's Johanna Konta beat Greece's Maria Sakkari 6-4 7-6 (7-3) to reach the third round of the Nature Valley International at Eastbourne.
The world number 19 was 5-3 down in the second set but fought back to secure victory in one hour and 37 minutes.
Konta, 28, will play Ons Jabeur in the third round after the Tunisian defeated Mandy Minella 2-6 6-2 6-1.
"There was so little in this match. I felt she was playing better than me for most of that match," Konta said.
"I'm really pleased to have stayed tough and created as many opportunities as possible.