Quebec City - Australian Open quarter-finalist Eugenie Bouchard has pulled out of Canada's home Fed Cup tie against holders the Czech Republic next weekend and been replaced by Charlotte Robillard-Millette announced Tennis Canada on Monday.
Bouchard, ranked seven in the world, is coming off an impressive Australian Open campaign where she was beaten in straight sets by Maria Sharapova, who also beat her in the French Open semi-finals last year.
"Of course we are disappointed that Genie is unable to be available for this tie and we know her fans in Quebec City will be disappointed as well," Tennis Canada chief executive Kelly Murumets said.
"However, Genie wants to be the best in the world and win Grand Slams and she needs to make the right decisions for her schedule and her training to give her the best opportunity to achieve that. Tennis Canada is fully supportive of Genie as she strives towards her goals."
Robillard-Millette, 16, comes off her best career showing, a run to the Australian Open junior women's quarter-finals that left her 814th in the world.
She joins 230th-ranked Francoise Abanda, 185th-rated Gabriela Dabrowski and 134th-ranked Sharon Fichman on the Canadian squad.
The Czechs will be without fourth-ranked Petra Kvitova but will be led by world number 22 Karolina Pliskova and 62nd-ranked Tereza Smitkova.