The reigning World Cup champion suffered a wrist injury while training in Aspen, Colo., and will undergo surgery.
The Canadian Olympic Committee released a statement saying the 35-year-old from North Vancouver, BC., decided to have surgery on her wrist after consulting with her coach and team staff.
"While the timing of this injury is very unfortunate, we know that Maëlle is an incredibly resilient athlete that has battled back from several injuries over her career to accomplish great things for Canada," said Steven Hills, Executive Director of Canada Snowboard.
"We hope that Maëlle's surgery is successful and believe that she will have every opportunity to join Team Canada in Sochi with the goal of competing in the snowboard cross event on February 16."
Canada Snowboard is expected to provide more information following Ricker's surgery.
She's the second Canadian medal hopeful in snowboarding to go down with a serious injury in the past few days. On Saturday, men's slopestyle star Mark McMorris cracked a rib during X Games competition.
Carle Brenneman of Whistler, B.C., would replace Ricker if she cannot compete at the Olympics.