Heather Watson is one win away from qualifying for the main draw of the French Open for the second year in a row after a 7-6 (7/5) 6-3 victory over Tunisia's Ons Jabeur.
The 20-year-old from Guernsey, who became the first British woman to achieve the feat for 28 years 12 months ago, will face Italy's Anna Floris in the final qualifying round on Friday.
Jabeur, last year's junior champion at Roland Garros, looked certain to take the first set when she fought back from 2-5 down to lead 5-1 in the tie-break.
But Watson, who reached the second round last year, responded by winning six points in a row and clinched victory by winning the final three games of the match.
Watson was joined in the final round of qualifying by 18-year-old Laura Robson, who ground out a 7-5 7-6 (7/5) victory over France's Laura Thorpe.
Robson, making her first appearance in the senior event at Roland Garros, had to save set points in the opener before edging a very tight second set after Thorpe twice fought back from a break down.
On Friday the teenager will meet a familiar foe in the form of 20-year-old Czech Karolina Pliskova, who won their battle in the final of the junior event at the Australian Open in 2010 and is ranked five places higher at 121st in the world.
Robson is looking to reach the main draw of a fourth successive grand slam after receiving a wild card at Wimbledon and qualifying at the US Open and Australian Open, and today's victory made it eight straight in slam qualifiers for the Londoner.