![Tomas Berdych, of Czech Republic returns to Jack Sock, of US during the Stockholm Open final Sunday Oct. 25, 2015. Foto: Anders Wiklund / TT / Kod 10040 Stock Photo - Alamy Tomas Berdych, of Czech Republic returns to Jack Sock, of US during the Stockholm Open final Sunday Oct. 25, 2015. Foto: Anders Wiklund / TT / Kod 10040 Stock Photo - Alamy](https://c8.alamy.com/comp/2GJ9G9E/tomas-berdych-of-czech-republic-returns-to-jack-sock-of-us-during-the-stockholm-open-final-sunday-oct-25-2015-foto-anders-wiklund-tt-kod-10040-2GJ9G9E.jpg)
Tomas Berdych, of Czech Republic returns to Jack Sock, of US during the Stockholm Open final Sunday Oct. 25, 2015. Foto: Anders Wiklund / TT / Kod 10040 Stock Photo - Alamy
![Marcos Baghdatis of Cyprus returns to Gilles Muller of Luxemburg during the quarterfinal in the Stockholm Marcos Baghdatis of Cyprus returns to Gilles Muller of Luxemburg during the quarterfinal in the Stockholm](https://c8.alamy.com/comp/2P27RED/marcos-baghdatis-of-cyprus-returns-to-gilles-muller-of-luxemburg-during-the-quarterfinal-in-the-stockholm-open-tennis-tournament-in-stockholm-sweden-23-october-2015-ap-photohenrik-montgomery-sweden-out-2P27RED.jpg)
Marcos Baghdatis of Cyprus returns to Gilles Muller of Luxemburg during the quarterfinal in the Stockholm
![Jack Sock, of US returns to Tomas Berdych, of Czech Republic, during the Stockholm Open tennis final, in Stockholm, Sunday Oct. 25, 2015. (Anders Wiklund /TT News Agency via AP Stock Photo - Alamy Jack Sock, of US returns to Tomas Berdych, of Czech Republic, during the Stockholm Open tennis final, in Stockholm, Sunday Oct. 25, 2015. (Anders Wiklund /TT News Agency via AP Stock Photo - Alamy](https://c8.alamy.com/comp/2P27EKJ/jack-sock-of-us-returns-to-tomas-berdych-of-czech-republic-during-the-stockholm-open-tennis-final-in-stockholm-sunday-oct-25-2015-anders-wiklund-tt-news-agency-via-ap-2P27EKJ.jpg)
Jack Sock, of US returns to Tomas Berdych, of Czech Republic, during the Stockholm Open tennis final, in Stockholm, Sunday Oct. 25, 2015. (Anders Wiklund /TT News Agency via AP Stock Photo - Alamy
![STOCKHOLM 2015-03-18 Australia's Pat Cash return the ball to Sweden's Mats Wilander during their matc in the veteran tournament Kings of Tennis held at Stockholm Waterfront Congress Centre March 18, 2015. Foto: STOCKHOLM 2015-03-18 Australia's Pat Cash return the ball to Sweden's Mats Wilander during their matc in the veteran tournament Kings of Tennis held at Stockholm Waterfront Congress Centre March 18, 2015. Foto:](https://c8.alamy.com/comp/2GJ9441/stockholm-2015-03-18-australias-pat-cash-return-the-ball-to-swedens-mats-wilander-during-their-matc-in-the-veteran-tournament-kings-of-tennis-held-at-stockholm-waterfront-congress-centre-march-18-2015-foto-soren-andersson-tt-kod-1037-2GJ9441.jpg)