Lleyton and Bec Hewitt are every inch the proud parents as they pose with son Cruz, 16, at 2024 Newcombe Medal in Melbourne

Tennis power couple Lleyton and Bec Hewitt were every inch the proud parents on Monday as they stepped out to support their only son Cruz in his latest sporting achievement. 

The trio arrived at the 2024 Newcombe medal ceremony at Crown Palladium in Melbourne, where the teenager, 16, is up for Tennis Australia's male junior athlete of the year. 

WAG Bec, 41, looked very glamorous in a modern black dress which featured a high-cut neck and A-line hem. 

Tucking a hand into the practical pockets of the frock, the mum-of-three paired her ensemble with a set of low-heeled sandals.

Opting for an understated look, Bec slipped on a pair of simple gold earrings as she slicked back her dark locks and rocked a natural makeup look.

Meanwhile, Lleyton, 43, and Cruz looked the matching pair in their black suit and ties with white button-up shirts.

Although Cruz opted for a pair of sneakers for a casual appearance.

Lleyton and Bec, who tied the knot in 2005, also share teenage daughters Mia, 18, and Ava, 13. 

Their family outing comes after the tennis champ and his love put their sprawling Gold Coast pad up for auction.

The couple listed the stunning four-bedroom mansion in October, three years after purchasing it for $4.3million.

The sprawling three-bathroom property is located in Burleigh Heads, one of Queensland's most sought-after postcodes, where the average house is valued at over $5million.

Listing agent Carol Carter from Queensland Sotheby's International Realty has teased that there has been interest from overseas buyers ahead of the auction.

She said there has been a lot of interest in the high-profile property, including from buyers from Germany and the United Kingdom. 

'We have had a lot of interest but it is difficult to get a read on it as people tend to keep things close to their chest,' Carol told realestate.com.au.

'But we have had a massive number of inquiries from interstate, a lot out of Sydney and Melbourne, and there has been quite a lot of local interest.'

Situated on a 539sqm block, the gorgeous property boasts three sprawling ensuite bedrooms on the upper level, including a luxurious master suite. 

The home is famous for briefly 'breaking the internet' in 2020 when it was first listed on the market, with hundreds of potential buyers flocking to its online listing.

Following their Sydney Opera House wedding in 2005, Bec and Lleyton relocated with their children to the island of Nassau in the Bahamas.

They purchased a $3.8million villa in the Old Fort Bay estate but moved back to Australia permanently in 2016.

More recently, the couple's daughter Mia has stepped into the spotlight herself as one half of indie-folk duo Father's Favourite.

The band performed their first gig back in August and Mia's former Home and Away star mum Bec is reportedly keen to steer her in the right musical direction.

While Bec is best known for playing Home and Away fan favourite Hailey Smith Lawson from 1998 to 2005, the actress also had a brief pop career.

On the back of her television fame, Bec released an eponymous solo album in 2002 and her debut single All Seats Taken hit number 10 on the ARIA chart.

Her album however was met with mixed reviews and her music career effectively came to an end in 2004 when she parted ways with label Warner Music.

A source told New Idea that Bec is keen to ensure that her daughter avoids the pitfalls that can befall new and inexperienced artists.

'Bec knows how to deal with bad people, dodgy managers, and doesn't want Mia making some of the mistakes she made early in her career like being too optimistic about certain jobs,' the source said.