The 61-year-old pop queen has injured one knee and has to rest for three days. On Instagram, she wrote and apologized to her fans.
"It is difficult for Madame X to acknowledge that she is also a man of flesh and blood and that she must rest for three days for the knee to be fully restored," her message read.
After years of touring in gigantic arenas, Madonna began her more intimate tour in October. It was then after a month's delay, which was explained to have production-technical reasons.
The concerts on October 10 and 12 are expected to take place as usual.