Career
On 16 February 2015, she reached her best singles ranking of world number 295. On 20 May 2013, she peaked at world number 743 in the doubles rankings. Liebens made her Women's Tennis Association tour debut at the 2015 Diamond Games, defeating Barbora Krejčíková, Gioia Barbieri and Ysaline Bonaventure in the qualifying tournament for a place in the main draw.
Singles (5–7)
Doubles (0–1).