The 2022 Wimbledon champion's withdrawal was announced hours before she was scheduled to begin her title defence against Romania's Irina-Camelia Begu (33).
Kazakhstan's Rybakina would be replaced by Frenchwoman Oceane Dodin (27), the tournament said in a post on X. "We wish our 2023 champion a speedy recovery," they added.
World number four Rybakina is scheduled to play in the French Open later this month.