Roger Federer via Facebook:
It is with great regret that I am withdrawing from the inaugural ATP Cup event.
When I entered the event last month, it was a really difficult decision because it meant less time at home with the family and a fully intense start to the season.
After much discussion with both my family and my team about the year ahead, I have decided that the extra two weeks at home will be beneficial for both my family and my tennis.
It pains me to not be a part of the most exciting new event on the calendar, but this is the right thing to do if I want to continue to play for a longer period of time on the ATP Tour.
I am sorry for any inconvenience or disappointment my withdrawal may cause for the fans, but I hope you can understand why I made it.
For my Australian fans, I look forward to seeing you all at the Australian Open, fresh and ready to go.
