Roger and Mirka was also seen speaking with a few students of the Academy.
'To be part of Team Europe together is great and if we're able to possibly share the court one more time as a doubles pairing then this would be a truly special experience for us both at this stage in our careers.'
Sitting courtside, Rafael Nadal cried as his great rival, Roger Federer, bid an emotional farewell to tennis at the Laver Cup on Friday, later saying an important part of him was also leaving the men's Tour with the retirement of the Swiss.
20-time Grand Slam champion Roger Federer returned from more than a year away for a last dance in tandem with great rival Rafael Nadal on a gripping and memorable finale by the Thames in front of a 17,500 sell-out crowd at London's O2 Arena on Friday.