Venus Williams has withdrawn from next week's WTA Nordic Light Open in Sweden because she is suffering from flu.
Williams won her third Wimbledon title this summer
The Wimbledon champion said: "I had planned my first visit to Stockholm for several months and I deeply regret that I won't be able to compete.
"My doctor and physiotherapist tell me that it's impossible for me to play next week."
Italy's Maria Santangelo will replace Williams in the draw for the event which starts on Tuesday.