The pair earlier partnered NBA champion Pau Gasol to launch the restaurants called Toto and Tatel.
Notably, the two-time Grand Slam champion faces a ban of up to four years.
The 2023 edition of the Australian Open is scheduled to start on January 16 and end on January 29.
The 2022 season for the Brit came to an early end after suffering a wrist injury.
Nadal's own future in sports remains in the air even though he won the season's opening two majors.
The Indian tennis star turned 36 on November 15, 2022.
The Serb tennis star said that he enjoyed spending time with his family and was really happy to see them around.
Federer was talking in a press conference in Tokyo.
Female players have raised their voices upfront, demanding an exception to the traditional rules requiring them to wear all-white clothing.
The 23-year-old notched up eight titles and 67 wins, including lifting the US Open trophy followed by a comprehensive victory at the San Diego Open.
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