![Switzerland's Roger Federer reacts after winning the semifinal match against US player Jack Sock at the Swiss Indoors tennis tournament at the St. Jakobshalle in Basel, Switzerland, Saturday, Oct. 31, 2015. (Dominic Switzerland's Roger Federer reacts after winning the semifinal match against US player Jack Sock at the Swiss Indoors tennis tournament at the St. Jakobshalle in Basel, Switzerland, Saturday, Oct. 31, 2015. (Dominic](https://c8.alamy.com/comp/2P26FJA/switzerlands-roger-federer-reacts-after-winning-the-semifinal-match-against-us-player-jack-sock-at-the-swiss-indoors-tennis-tournament-at-the-st-jakobshalle-in-basel-switzerland-saturday-oct-31-2015-dominic-steinmannkeystone-via-ap-2P26FJA.jpg)
Switzerland's Roger Federer reacts after winning the semifinal match against US player Jack Sock at the Swiss Indoors tennis tournament at the St. Jakobshalle in Basel, Switzerland, Saturday, Oct. 31, 2015. (Dominic
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18 March, 2015 : Roger Federer of Switzerland serves to Jack Sock during the BNP Paribas Open at Indian Wells Tennis Garden in Indian Wells, California.Charles Baus/CSM (Cal Sport Media via AP
![March 18, 2017 Jack Sock congratulates Roger Federer of Switzerland after their semi final match during the 2017 BNP Paribas Open at Indian Wells Tennis Garden in Indian Wells, California. Charles Baus/CSM ( March 18, 2017 Jack Sock congratulates Roger Federer of Switzerland after their semi final match during the 2017 BNP Paribas Open at Indian Wells Tennis Garden in Indian Wells, California. Charles Baus/CSM (](https://c8.alamy.com/comp/2P04P85/march-18-2017-jack-sock-congratulates-roger-federer-of-switzerland-after-their-semi-final-match-during-the-2017-bnp-paribas-open-at-indian-wells-tennis-garden-in-indian-wells-california-charles-bauscsm-cal-sport-media-via-ap-images-2P04P85.jpg)
March 18, 2017 Jack Sock congratulates Roger Federer of Switzerland after their semi final match during the 2017 BNP Paribas Open at Indian Wells Tennis Garden in Indian Wells, California. Charles Baus/CSM (
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Geneva, Switzerland. 21st Sep, 2019. NICK KYRGIOS playing doubles with JACK SOCK in the Laver Cup tennis event in Geneva Switzerland. Credit: Christopher Levy/ZUMA Wire/Alamy Live News Stock Photo - Alamy
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September 21, 2019, Geneva, Switzerland: NICK KYRGIOS playing doubles with Jack Sock in the Laver Cup
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