The British No 1 was set to play David Goffin in the third round on Thursday but has now handed his Belgian opponent a walkover and cited fatigue as the reason of his withdrawal.
Murray has won back-to-back clay court titles in the past 10 days (the first of his career) in Munich and Madrid but has opted against continuing his pursuit of a third with the forthcoming French Open in mind.
“I felt tired this morning,” Murray told a news conference. “I practiced 40 minutes and felt pretty exhausted. ?? ?? ?? ?? ?? ?? ??
“It didn’t make sense for me to keep going because when you feel like this it becomes a risk to play.”
The French Open at Roland Garros begins on May 24.