New world number one Ana Ivanovic has pulled out of next week’s Eastbourne grasscourt tournament with a muscle injury, organizers said on Wednesday.

The 20-year-old Serbian, who took the top world ranking this week and won her first grand slam title at the French Open on Saturday, said she was also feeling the strain of her efforts at Roland Garros.

"I have a problem with my abductor," Ivanovic said in a statement.

"I am also mentally exhausted after the French Open—I am not ready to compete so soon after winning my first Grand Slam. I have taken this decision with some regret and I hope I can finally play in Eastbourne next year."