Serena Williams is "fighting for equality", according to LeBron James, who said he feels her "struggle".
"Being an African-American woman playing in a predominantly white sport, she's dealing with so much more," James said of Williams.
Serena Williams' US Open row continues to rumble on and Roger Federer has had his say.
Carlos Ramos, the umpire at the centre of Serena Williams' US Open storm, returned to the chair in the Davis Cup on Friday.
US Open mixed doubles champion Jamie Murray believes Serena Williams' claims of sexism in the wake of her umpire row are wide of the mark.
Serena Williams told Naomi Osaka she was proud of her after the Japanese star's US Open win.
Carlos Ramos said he did not pick and choose when to apply the rule book as he broke his silence following Serena Williams' claim of sexism.
Serena Williams acted with "grace and class" during her umpire dispute in the US Open final against Naomi Osaka, says Stephen Curry.
The 2018 US Open provided many moments to remember. Unfortunately the most significant developments were not positive.
Serena Williams was aghast at umpire Carlos Ramos giving her a game penalty in the US Open final, but the ITF has backed him.