The 41-year-old, who announced his retirement from the sport last week after a record-breaking career, said he still has to manage the “restrictions” on his body.
The Swiss has undergone multiple knee surgeries in the past several years, and hasn’t played competitively since his defeat to Hubert Hurkacz in the Wimbledon quarter-finals in 2021.
As it stands, this will be Federer’s last singles match of his career, but the 20-times Grand Slam champion has confirmed he will take to the court for the last time at the O2 Arena in doubles.
Rafael Nadal He will be a popular doubles partner for Federer, who has said it would be “fantastic” to play alongside the Spaniard and a long-term contender. Novak Djokovic or Andy Murray could play alongside Federer for Team Europe, while his opponents at Team World will be confirmed on Thursday.
According to the Laver Cup rules, which Federer helped create, all six players on each team must appear in at least one singles match on the opening two days of the tournament.
But Federer said he had discussed the idea of having just one doubles match with Team Europe captain Bjorn Bjorg, World Team captain John McEnroe, as well as tournament organizers, and was given permission not to play in the singles.
Federer will replace European substitute Matteo Berrettini in the tournament, who will replace Federer in the singles on Saturday.