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.

"Our goal is to give people an experience that is so great they want to do it again!" said the Laver Cup's chief executive officer Steve Zacks while announcing a five-year extension to the tournament's partnership with the ATP.

Roger Federer retired two years ago but his connection to tennis remains stronger than ever. The return of the Laver Cup is another reminder that he never left the stage.