![U.S. Alex Bogomolov Jr. returns the ball to Philipp Kohlschreiber of Germany at the St. Petersburg Open ATP tennis tournament in St.Petersburg, Russia, Thursday, Oct. 27, 2011. (AP Photo/Dmitry Lovetsky Stock Photo - U.S. Alex Bogomolov Jr. returns the ball to Philipp Kohlschreiber of Germany at the St. Petersburg Open ATP tennis tournament in St.Petersburg, Russia, Thursday, Oct. 27, 2011. (AP Photo/Dmitry Lovetsky Stock Photo -](https://c8.alamy.com/comp/2NB0GJG/us-alex-bogomolov-jr-returns-the-ball-to-philipp-kohlschreiber-of-germany-at-the-st-petersburg-open-atp-tennis-tournament-in-stpetersburg-russia-thursday-oct-27-2011-ap-photodmitry-lovetsky-2NB0GJG.jpg)
U.S. Alex Bogomolov Jr. returns the ball to Philipp Kohlschreiber of Germany at the St. Petersburg Open ATP tennis tournament in St.Petersburg, Russia, Thursday, Oct. 27, 2011. (AP Photo/Dmitry Lovetsky Stock Photo -
![ATP Tour on Twitter: "Alex #Bogomolov looks to give back after retiring from professional tennis. Read tribute: http://t.co/jKjLt04udD #atp http://t.co/aR2a0Fj1zR" / Twitter ATP Tour on Twitter: "Alex #Bogomolov looks to give back after retiring from professional tennis. Read tribute: http://t.co/jKjLt04udD #atp http://t.co/aR2a0Fj1zR" / Twitter](https://pbs.twimg.com/media/B6iCsPeCYAAbHgF.jpg)
ATP Tour on Twitter: "Alex #Bogomolov looks to give back after retiring from professional tennis. Read tribute: http://t.co/jKjLt04udD #atp http://t.co/aR2a0Fj1zR" / Twitter
![Marat Safin of Russia returns a forehand against Alex Bogomolov of the U.S. at the China Open tennis in Beijing. Marat Safin of Russia returns a forehand against Alex Bogomolov of the Marat Safin of Russia returns a forehand against Alex Bogomolov of the U.S. at the China Open tennis in Beijing. Marat Safin of Russia returns a forehand against Alex Bogomolov of the](https://c8.alamy.com/comp/2D475BA/marat-safin-of-russia-returns-a-forehand-against-alex-bogomolov-of-the-us-at-the-china-open-tennis-in-beijing-marat-safin-of-russia-returns-a-forehand-against-alex-bogomolov-of-the-us-during-the-first-round-of-the-china-open-tennis-in-beijing-september-16-2004-safin-won-6-4-7-5-reutersguang-niu-2D475BA.jpg)
Marat Safin of Russia returns a forehand against Alex Bogomolov of the U.S. at the China Open tennis in Beijing. Marat Safin of Russia returns a forehand against Alex Bogomolov of the
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