Serena Williams kept it casual as she attended the Art Basel convention centre in Miami Beach on Wednesday.

The tennis champion showed off her athletic physique as she donned a matching lilac Nike two piece.

The sportswomen paired her shorts and quarter zip with a Gucci bumbag and multi-coloured Nike trainers.

The star, 42, completed the look with some wide black framed sunglasses.

Serena headed to the Art Basel Miami Beach which is renowned as North America’s most comprehensive contemporary art fair.

Serena Williams, 42, cut a sporty figure as she attended the Art Basel in Miami alongside her glamorous sister Venus, 43, on Wednesday

The tennis champion showed off her athletic physique as she donned a matching lilac Nike two piece

Running from December 8-10, the fair will display modern and contemporary art from 277 galleries.

Serena looked to be in great spirits as she posed with friends once inside the event as she enjoyed the VIP preview day.

Meanwhile her sister Venus posed up a storm later in the day as she turned heads at the Art Basel Miami Beach dinner at Cote Miami.

The tennis star, 43, put on a very leggy display as she donned a sparkly little black mini dress patterned with a silver sequined moon and constellation pattern.

She showed off her ample cleavage in the square necked gown, while she styled her brunette locks straight over her shoulder.

Venus completed the look with some black heels while she posed confidently with her hand on her hip.

It comes after Serena claimed her breast milk helped heal her sunburn.

The mother, who gave birth to her second daughter in August, recently took to TikTok to detail her unusual hack.

The sportswomen paired her shorts and quarter zip with a Gucci bumbag and multi-coloured Nike trainers

The star completed her look with some wide black framed sunglasses

Serena headed to the Art Basel Miami Beach which is renowned as North America’s most comprehensive contemporary art fair

Serena looked in great spirits as she walked around with her arm around entrepreneur Loren Ridinger

Serena was also joined by French photographer and street artist JR

The star was seen embracing her friend as she arrived for the VIP preview

Venus looked sensational for the Art Basel dinner in the evening

The tennis star, 43, put on a very leggy display as she donned a sparkly little black mini dress patterned with a silver sequined moon and constellation pattern

Venus completed the look with some black heels while she posed confidently with her hand on her hip (pictured with author Laura Shriftman)

Venus was also joined by her other sister, film producer Isha Price

Venus showed off her ample cleavage in the square necked gown, while she styled her brunette locks straight over her shoulder

Venus was seen chatting with art dealer Marc Glimcher

Her and Marc also posed alongside Samanthe Rubell, the Pace Gallery president

She dabbed the breast milk on her undereye, which had been left scorched by the sun, before revealing that ‘it worked’ to soothe the area.

But it seems that some of her 1.6 million followers were unsure about her unique remedy.

In the clip, which has so far been viewed more than 47,000 times, Serena wears a black crop top and matching pants.

The mother-of-two, who stepped away from the sporting limelight last summer, speaks directly to camera from her home in Los Angeles.

She begins: ‘So I completely got burned under my eye – don’t ask…

‘I have sensitive skin. I was in the sun. Long story. Anyway, I’m trying some breast milk.

‘It works for my kid. They say put breast milk on everything and I have a lot of extra so I’m going to try it for a week or so under my eye and see how it goes.’