Sloane Stephens hires Sven Groeneveld as new coach (Twitter)

Grigor Dimitrov splits with coach Dani Vallverdu (Tennis.com)

Gritty David Ferrer hangs up his racquet (Essentially Sports)

ATP Tour Finals will move to Turin, Italy in 2021 (The Guardian)

Lower ranked players unionize in an effort to take on the ITF (Metro UK)

Stan Wawrinka writes public letter on the political chaos in tennis (ESPN)

Novak Djokovic wishes Stan Wawrinka didn’t go public with his gripes (The Times)

More legal troubles for Justin Gimelstob as prosecutors want his plea tossed out (LA Times)