Kudos to Federer and Nadal for that. You can see that these two are very close, the fact they can have this discussion between themselves and donate together is great. I do think that these two will only become even better friends after they retire.
A Big3 meeting after retirement:-
Rogi :- So rafa, what should we do for fun??
Rafa :- I am gonna come to Geneva, Switzerland and hit to your backhand no??!!
Rogi :- Rafa, that stopped working from 2017, don't you remember fella?!
Rafa :- that's still ombellible, no! I'm gonna try my best nevertheless..
Djok :- Guys, I'm here too..
Rogi :- So rafa, what about that new fishing submarine? When Are you giving me a ride on that?
Rafa :- only after you take me to the swiss mountains for snow games no! I'm gonna try my Highest level there...
Djok :- Rafaaaaaa.....Rogerrrr......GUYS PLOX
Rogi :- March is the best time to go, rafa. Come join me. Hey nole, you were saying something??
Rafa :- I'm berry berry happy no! Let's go hiking on 15th March roger.. Yeah say nole..
Djok :- Okay I've a plan as well. You'd absolutely love it.
Rafa :- what?
Rogi :- what?
Djok :- Let's rewatch 40-15....