Singles supremo & Former World no. 1 Andy sent his congratulations to the pair after their victory at Flushing Meadows.
won the US Open mixed doubles championship for their second Grand Slam title in two tournaments as a team.
Hingis and Murray beat Micheal Venus of New Zealand and Chan Hao Ching of Taiwan 6-1, 4-6, 10-8 in a match tiebreaker Saturday at Flushing Meadows.
In a post on instagram he wrote “Proud little brother…” alongside a picture of his TV, with Jamie and Hingis holding the US Open mixed doubles trophy on the screen.
Andy did not take part in the US Open due to a hip injury that has dogged him all season.
The former world No 1 is not expected to play for the rest of the year in an effort to recover from the problem.
Hingis, already a member of the International Tennis Hall of Fame, and Murray are 10-0 as a duo. They won Wimbledon in July.
This is Hingis’ seventh mixed doubles major trophy and second at the US Open. She will play in the women’s doubles final Sunday, with Chan’s sister as her partner.
Hingis, who will also compete in Sunday’s women’s doubles final alongside Chan Yung-jan, now has 24 Grand Slam titles across singles and doubles.
Her first came as a 15-year-old in the 1996 Wimbledon women’s doubles, while this year marks the 20th anniversary of her US Open singles title, secured with victory over Venus Williams.
Scot Murray, who won the the men’s doubles title with Bruno Soares in New York last year, now has five Grand Slam titles.
After the match Jamie paid tribute to Hingis, who won the singles title in New York 20 years ago, saying: “She’s an amazing player, she’s had such a great career.
“It’s been a lot of fun, we’ve won a lot of close tennis. It just shows how fine the margins are. Hopefully we play more.”