Berrettini gives us the backstage of a selfie that will remain in the history of tennis

Roger Federer

, who has already announced his retirement from tennis competition, is in London to play the

.

The

will be the fifth edition of this competition: an annual tennis tournament with teams divided by representative teams.

The

, will compete at The O2 Arena in London from

.

It will be the

of Roger Federer's career.

Roger is clearly in the European representative and with him are the Spaniard

(n ° 2 in the ATP rankink), the Greek

(6), the Serbian

(7), the Norwegian

(2),

for the United Kingdom and

for Italy (15). 

What better opportunity for the Swiss to indulge in a

gathering all these champions in a single photo.

, it is not known why, temporarily replaced for this snapshot between colleagues (and perhaps friends) by the British

(8).

Federer has however said that he would like

.

Our

did not miss the opportunity and gave us the

of this selfie that will remain in

.