![Russian Mikhail Youzhny is embraced by his coach Boris Sobkin (R) after winning the final of the ABN AMRO World Tennis Tournament in Rotterdam, the Netherlands, February 25, 2007. REUTERS/Paul Vreeker (NETHERLANDS Russian Mikhail Youzhny is embraced by his coach Boris Sobkin (R) after winning the final of the ABN AMRO World Tennis Tournament in Rotterdam, the Netherlands, February 25, 2007. REUTERS/Paul Vreeker (NETHERLANDS](https://c8.alamy.com/zooms/9/a8399f73173447afa08647df205348f5/2e7fj3y.jpg)
Russian Mikhail Youzhny is embraced by his coach Boris Sobkin (R) after winning the final of the ABN AMRO World Tennis Tournament in Rotterdam, the Netherlands, February 25, 2007. REUTERS/Paul Vreeker (NETHERLANDS
Boris Sobkin, who has coached top Russian player Mikhail Youzhny for the past 17 years, gives his thoughts on what differentiates Russian players from... | By CNN Open Court | Facebook
![تويتر \ Tennis TV على تويتر: "#Youzhny fighting. Coach Boris Sobkin still living every moment. Watch @genevaopen live: https://t.co/YG3sKNtCGU https://t.co/jlPdt2N1U1" تويتر \ Tennis TV على تويتر: "#Youzhny fighting. Coach Boris Sobkin still living every moment. Watch @genevaopen live: https://t.co/YG3sKNtCGU https://t.co/jlPdt2N1U1"](https://pbs.twimg.com/media/Cil--zoXIAEsyQy.jpg)
تويتر \ Tennis TV على تويتر: "#Youzhny fighting. Coach Boris Sobkin still living every moment. Watch @genevaopen live: https://t.co/YG3sKNtCGU https://t.co/jlPdt2N1U1"
![Roger Federer's place in the Big Three is in doubt,' says Russian coach - TennisBuzz - Breaking tennis news, live scores and features Roger Federer's place in the Big Three is in doubt,' says Russian coach - TennisBuzz - Breaking tennis news, live scores and features](https://tennisbuzz.net/.image/ar_1:1%2Cc_fill%2Ccs_srgb%2Cfl_progressive%2Cq_auto:good%2Cw_1200/MTkxNjM5NTAxNTczMjAzNjE5/roger-federer-ball-toss.jpg)
Roger Federer's place in the Big Three is in doubt,' says Russian coach - TennisBuzz - Breaking tennis news, live scores and features
![Tennis TV on Twitter: "Mikhail #Youzhny & Boris Sobkin courtside to watch #Donskoy take on #Ram @genevaopen. https://t.co/S26QRmAGim https://t.co/RpZuKtSoz0" / Twitter Tennis TV on Twitter: "Mikhail #Youzhny & Boris Sobkin courtside to watch #Donskoy take on #Ram @genevaopen. https://t.co/S26QRmAGim https://t.co/RpZuKtSoz0" / Twitter](https://pbs.twimg.com/media/Cipwy2hWYAAuVUi.jpg)