In a Facebook posting Wilander on Wheels, which runs tennis clinics, said it wanted to give an update on his condition because of rumours swirling about the Swede, a commentator for Eurosport.
“Late on Saturday evening Mats sustained a fall in his apartment which caused him to be taken to a local hospital in Melbourne,” the posting said.
“He sustained a laceration to one of his kidneys. This caused internal bleeding. The bleeding has ceased as of 7.00am this morning. He will be out of commission for a while.
“We will keep you updated on his condition if things change. Thanks for everyone’s concerns and enjoy the Open!”
The Swedish tennis legend was in Melbourne to work as a television commentator for the Australian Open tournament.
Wilander, 47, won seven grand slam titles between 1982 and 1988, including three Australian Open titles and three French Open titles, in a glittering career.
Along with countryman Stefan Edberg, Wilander helped to ensure that Swedish men were a force to be reckoned with on the Grand Slam circuit after the retirement of Björn Borg in 1983.