Federer founded the Laver Cup in 2017 and named it after the legendary Rod Laver.
The Swiss star has also spearheaded Europe to back-to-back titles and he hopes to make it a hat-trick later this year.
He will be joined by Nadal for only the second time as the Spaniard missed the 2018 event through injury.
And Federer is already looking forward to linking up with his long-term rival.
“For me it is incredibly exciting, no doubt about it,” Federer said.
“Also Rafa has already announced he is going to play and be on the team with me – that is going to be sick.
“That is going to be a lot of fun.
“I can’t wait to see where it is going to go and to spend another week with Bjorn Borg is a dream come true.
“It is a lovely event in my opinion.”
Federer was also quizzed on the lack on Asian players participating in the international event – but he explained it was not without invitation.
“I think Nishikori was asked to play the last couple of years and he chose not too,” he added.
“I think also the first year maybe he was injured.
“I don’t know if (Hyeon) Chung was not picked by (Rest of the World captain John) McEnroe or whatever happened.
“It is whoever puts themselves in the driver’s seat there and qualifies is selected by the captain – that’s their choice.
“I think it will be great to have a big variety of guys. We were happy to have (Juan Martin) Del Potro actually play twice, but then he actually pulled out twice.
“(Diego) Schwartzman was over the moon when he qualified, that was his big goal of the year, so was it for a lot of other guys.
“McEnroe was extremely close the last couple of years so I don’t think the mistake was with him.”
Source : EXPRESS