Roger Federer has confirmed he will miss the remainder of the 2020 season after undergoing "additional" surgery on his right knee.
The pandemic-hit campaign is set to resume in August but the 38-year-old has ruled out a return until 2021.
In a message on his social media channels, Federer wrote: "A few weeks ago, having experienced a setback during my initial rehabilitation, I had to have an additional quick arthroscopic procedure on my right knee.
"Now, much like I did leading up to the 2017 season, I plan to take the necessary time to be 100% ready to play at my highest level.
"I will be missing my fans and the tour dearly but, I will look forward to seeing everyone back on tour at the start of the 2021 season."
