![Swiss tennis player Roger Federer is seen during an open practice session at the RAC Arena in Perth on Friday, December 28, 2018. Roger Federer will be playing in the Hopman Cup Swiss tennis player Roger Federer is seen during an open practice session at the RAC Arena in Perth on Friday, December 28, 2018. Roger Federer will be playing in the Hopman Cup](https://c8.alamy.com/comp/2JXTCEE/swiss-tennis-player-roger-federer-is-seen-during-an-open-practice-session-at-the-rac-arena-in-perth-on-friday-december-28-2018-roger-federer-will-be-playing-in-the-hopman-cup-in-perth-from-this-saturday-december-29-aap-imagerichard-wainwright-2JXTCEE.jpg)
Swiss tennis player Roger Federer is seen during an open practice session at the RAC Arena in Perth on Friday, December 28, 2018. Roger Federer will be playing in the Hopman Cup
![CAMEWIN-Beach Tennis Racket, Full Carbon Fiber, 18K Carbon Yarn Material on the Surface, Intermediate Layer, EVA Foam Rac - AliExpress CAMEWIN-Beach Tennis Racket, Full Carbon Fiber, 18K Carbon Yarn Material on the Surface, Intermediate Layer, EVA Foam Rac - AliExpress](https://ae01.alicdn.com/kf/Sd58923ab744e4b988b446ff3b099848ec.jpg_640x640Q90.jpg_.webp)
CAMEWIN-Beach Tennis Racket, Full Carbon Fiber, 18K Carbon Yarn Material on the Surface, Intermediate Layer, EVA Foam Rac - AliExpress
![RAC Arena, Perth, Australia. 1st Jan, 2019. Hopman Cup Tennis, sponsored by Mastercard; Serena Williams of Team USA reacts to her shot during the match agaist Belinda Bencic of Team Switzerland Credit: RAC Arena, Perth, Australia. 1st Jan, 2019. Hopman Cup Tennis, sponsored by Mastercard; Serena Williams of Team USA reacts to her shot during the match agaist Belinda Bencic of Team Switzerland Credit:](https://c8.alamy.com/comp/RA3AYA/rac-arena-perth-australia-1st-jan-2019-hopman-cup-tennis-sponsored-by-mastercard-serena-williams-of-team-usa-reacts-to-her-shot-during-the-match-agaist-belinda-bencic-of-team-switzerland-credit-action-plus-sportsalamy-live-news-RA3AYA.jpg)