SERENA WILLIAMS wowed in a black dress and diamond-encrusted shoes at the US Open – her final ever Grand Slam before retirement.

It was no surprise that for this special occasion, Williams chose an appropriate outfit, one that befits someone who appears regularly on the front covers of Vogue and Elle magazine.

Serena Williams wowed fans in a black dress during her first-round US Open win. Credit: Getty

The tennis legend announced her retirement from the sport ahead of the competition. Credit: Rex

And her sponsor Nike kitted her out in a special dress for the momentous occasion. Credit: EPA

The dress included all her previous title wins at the competition over the years – and diamond-encrusted shoes. Credit: Rex

The outfit included a flowing trail. Credit: Getty Images – Getty
And there was even a hidden message inside the outfit.

Her long-term sponsors Nike commissioned a figure skating-inspired dress that was made of six layers – in recognition of her past six titles in the Big Apple.

And having started her career in NYC with beads in her hair, the Californian is ending it with gems in her locks and 400 hand-set diamonds on her shoes.

The 23-time grand slam champion revealed before the tournament that she’s planning to retire from the sport.

And she lived to fight another day as she beat Danka Kovinic in straight sets.

Celebrities flocked to the Arthur Ashe Stadium to witness what could’ve been Serena’s last-ever swing of a racquet professionally.

Mike Tyson was amongst the slew of stars who cascaded into the Flushing Meadows for the occassion.

Iron Mike seemed to be in better health than he was earlier this month when he was spotted in a wheelchair.

The boxing icon ditched the accompanying walking stick and strutted comfortably into the arena.

He was joined in the stands by Lindsey Vonn, Hugh Jackman, and former US President Bill Clinton.

Fashion guru Anna Wintour and actress Rebel Wilson were also in attendance.

And the superstars will likely be out in force again when Serena takes on Anett Kontaveit in the second round on Wednesday.

Serena’s trainers included diamonds. Credit: Getty Images – Getty

There were six layers to her dress – one for each US Open victory. Credit: Getty Images – Getty