They will represent Team Europe against Team World's Jack Sock and Frances Tiafoe at London's 02 Arena.
The Swiss, 41, has not played since Wimbledon 2021, after which he had a third knee operation.
Roger Federer's return to the court is uncertain and says he is going to miss the US Open and be…
Roger Federer says he may pull out of the French Open if there is too much risk to his knee,…