Andy Murray attracted praise from his mum after calling out a reporter who appeared to ignore the success of America's female tennis players.
Murray corrected a journalist who said Sam Querrey was the first US player to reach a major semi-final since 2009.
The world number one responded: "Male player."
The comment was made in a post-match press conference after defending champion Murray crashed out of Wimbledon's quarter-finals.
Judy Murray posted "That's my boy" along with a heart emoji, after re-tweeting the comments.
First Minister of Scotland Nicola Sturgeon also praised the defeated British star, tweeting: "What a star @andy_murray is - on and off the court."