Roger Federer back playing tennis as retired star raises eyebrows at Laver Cup
The 20-time Grand Slam champion famously enjoyed an emotional farewell at the 2022 Laver Cup, when the team event was staged in London's O2 Arena. Federer co-created the Laver Cup and is back as a spectator in Berlin this year. He also raised eyebrows when he took to the iconic black court for a hit earlier in the week.