Despite guiding Britain to its first Davis Cup final since 1978, it seems Andy Murray still has a point to prove in some quarters if this weekend's clash with Belgium is to be played.
The world No. 2 has been accused by former British captain David Lloyd of failing to inspire a future generation of tennis stars.
Lloyd claimed that Murray's pair of Grand Slam victories has not been enough to convince kids in the UK to pick up a racket rather than a football. Winning tournaments, Lloyd said, is no substitute for putting your heart and soul into grassroots tennis.
Posting on Instagram on Sunday, Murray responded, "Thanks for all the messages of support on social media today and for seeing [Saturday's] criticism for exactly what it was #bitter #backthebrits."
Former players have jumped to Murray's defence, too, with former British No.1 Tim Henman saying others have to take advantage of the interest Murray creates in the game.
Henman said: "He's won Wimbledon, the US Open, Olympic gold. That's the most important thing for him to do, to concentrate on his preparation and performance on the court.
"There are others that need to be responsible for taking advantage of the interest he creates in the game. But if you ask me, I think Andy Murray is doing all right."