Goat, but make it fashion.

That must have been the brief for Roger Federer’s wife Mirka after she sent the internet into meltdown with an outfit that can only be described as iconic.

While the eyes of the tennis world are on the Australian Open, Federer is enjoying the retired life, making an appearance on the other side of the world at Paris Fashion Week.

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Stepping out in Paris, the Swiss maestro looked sharp as usual in a navy turtleneck and two-piece suit combination.

But it was his wife who Mirka stole the show, wearing a sweater vest with an unmistakeable blue goat emblazoned on the front, worn over the top of a patterned dress.

Sure enough, tennis fans immediately lost their collective minds at what many suspected was a deliberate choice by Mirka to acknowledge to her husband as the GOAT — the greatest tennis player of all time.

Others have pointed out the vest may have simply been a nod to Mirka’s star sign Aries’ animal, which is a ram.

The Federers were also spotted rubbing shoulders with longtime Vogue magazine editor Anna Wintour and Australian film director Baz Luhrmann.

Federer retired from professional tennis last year after a glittering career that saw him with 20 grand slam titles.

Rafael Nadal leads all comers with 22 grand slams and he could well be equalled by Novak Djokovic if the Serbian wins his 10th Australian Open crown this weekend.

But despite being third on the leaderboard, Federer is still viewed by many as the greatest tennis player to every play the game.

Djokovic paid tribute to Federer after his dominant Australian Open quarter-final win over Andrey Rublev on Wednesday.

The nine-time Australian open winner extended his unbeaten streak Down Under to 26 games, moving clear of Andre Agassi’s all-time record.

His dominating win puts the remainder of the draw on notice as he moves into his 44th career Grand Slam semi-final, just behind Federer’s record of 46 semi-finals.

Djokovic reflected on the first time he faced Federer in a grand slam semi-final.

“I think it was the US Open back in 2007,” he recalled.

“It seems quite a long time ago. But yeah. I was fortunate to win that semi-finals. You know, in the finals, I lost to Roger.”

The Rod Laver Arena crowd cheered at the mention of Federer’s name, and Djokovic urged them on.

“Lets give a big round of applause to Roger guys, let’s go.

“He deserves it. I had some great battles with Roger over the years that’s for sure.

“Tennis misses him for sure. I’ve seen him dressing up very sharply for fashion week, I saw him the other day (on social media).”

Jim Courier asked Djokovic if he’d seen a video of Federer skiing with his family.

“I’ve seen him skiing. I want to challenge him for a little skiing race in few years time,” he said.

“He is enjoying life for sure. It’s nice to see that. Obviously, for tennis, he has been one of the most important players ever to play the game. So, you know, big regards to him and his family.”