Dominic Thiem, Philipp Kohlschreiber, Tournament Director Ralf Weber and his wife Irina, Roger Federer and Boris Becker enjoy the players' party Tuesday night at the Gerry Weber Open.

Roger Federer rolls during his opener at the Gerry Weber Open in Halle on Tuesday.

Roger Federer couldn't make good on a match point against Tommy Haas in Stuttgart.

Roger Federer will compete next at the ATP World Tour event in Halle.

Roger Federer suffered his first opening-round defeat on grass since 2002.

Long-time friends Roger Federer and Tommy Haas embrace at the net after Haas' upset win on Wednesday in Stuttgart.

Roger Federer returns to tour-level action on Wednesday at the MercedesCup in Stuttgart.

Roger Federer and Tommy Haas have some fun at the Schlossplatz ahead of the MercedesCup in Stuttgart.

Tommy Haas and Roger Federer have fun on Monday at Schlossplatz, the largest square in Stuttgart, ahead of the MercedesCup.

Roger Federer and Tommy Haas have fun at Schlossplatz, the largest square in Stuttgart, on Monday ahead of the MercedesCup.

Roger Federer returns to tour-level action at the MercedesCup in Stuttgart.

Roger Federer and Tommy Haas play mini tennis at Schlossplatz in the centre of Stuttgart.

Roger Federer and wife, Mirka, attend the 'Rei Kawakubo/Comme des Garcons: Art Of The In-Between' Costume Institute Gala at the Metropolitan Museum of Art.

Roger Federer celebrates his third Miami Open title with coach Ivan Ljubicic, whom he defeated in the Miami title match in 2006.

After winning the Miami Open presented by Itau title, Roger Federer is off to one of the best starts of his career at 19-1.

Roger Federer celebrates his third Miami title and 26th at the ATP World Tour Masters 1000 level.

Roger Federer won his most recent FedEx ATP Head2Head meeting against Rafael Nadal at the Miami Open presented by Itau on 2 April.

Roger Federer celebrates his third Miami Open presented by Itau title.

The ball kids at the Miami Open strike a pose with 2017 champion Roger Federer after his victory over Rafael Nadal.

Roger Federer tries to pull off the "Sunshine Double" for the third time in his career on Sunday.

Rafael Nadal beat Roger Federer the last time they played in Miami, in 2011.

Roger Federer will try to beat Rafael Nadal for the fourth consecutive time on Sunday during the Miami Open presented by Itau final.

Roger Federer will go for his third Miami Open presented by Itau title on Sunday against Rafael Nadal.

Roger Federer celebrates advancing into his first Miami Open final since 2006.

Roger Federer and Nick Kyrgios left it all on the court in their thrilling semi-final clash in Miami.