Eugenie Bouchard's revival came to a halt at the Ladies Championship Gstaad on Saturday as injury forced her to retire from her semi-final with Alize Cornet.
The 2014 Wimbledon finalist has enjoyed something of a resurgence since qualifying for this year's grand slam at SW19 and has looked in good form in Switzerland.
Her performances earned her a wild card at the upcoming Rogers Cup in Montreal, but a groin injury meant she will not challenge for a title this weekend.
A tight opening set saw Cornet edge ahead in the tie-break but after one game of the second Bouchard could not go on, allowing her French opponent to progress with the score 7-6 (7-5) 1-0.
Cornet will meet Mandy Minella in Sunday's final after she battled back from a set down to beat Marketa Vondrousova 4-6 6-2 6-2, securing her first WTA final appearance less than a year after giving birth.
It was semi-final day at the Bucharest Open too with Petra Martic and Anastasija Sevastova both celebrating.
Martic ended hope of a fourth Romanian winner in five years as she brushed aside Mihaela Buzarnescu 6-4 6-4, reaching a first final since 2012.
Top seed Sevastova will provide tough competition for the Croatian, though, after Polona Hercog's retirement gave her a comfortable path into the final.
Hercog had her right thigh strapped during the last-four meeting, and called it a day after losing the opening set 6-1.