Triple threat! The best photos of Bec and Lleyton Hewitt's three kids

In November 2005, Bec and Lleyton welcomed their first daughter Mia Rebecca Hewitt together.

Not long after, their son Cruz joined the clan.

Their family unit was complete with the adorable addition of firecracker Ava in October 2010.

There's nothing more precious than the relationship a father shares with his daughter and when it comes to Mia and Ava, Lleyton is a complete and utter softie.

Lleyton descries the privilege of raising his girls as "the greatest gift of life."

Seeing double! Bec (R) with her lookalike oldest daughter, Mia (L), during Paris Fashion Week in 2019.

In 2018, Mia had a starring role alongside her actress mum Bec as an ambassador for haircare brand Palmolive.

Star in the making: While Ava is already following in Bec's footsteps and loves to perform.

Just look at those sparkling green eyes!

Ava is a natural in front of the camera.

In 2020, Ava made her solo television debut in an ad for Target.

Over the years, Bec and the kids have been a constant fixture cheering on tennis star Lleyton.

"They are going to have lifelong memories of this. Of being out there with me," Lleyton has said of his kids getting to witness him play on courts around the world.

And just like dad, Cruz has taken a keen interest in the sport.

Lleyton's mini-me has been playing tennis since he could walk!

Last year, Cruz won his first title on the court. "So pumped to get my 1st title. Thanks everyone for the help and support," Cruz penned on social media at the time.

Talented dancer Ava has become quite the social media sensation, clocking up over seven thousand followers on her Instagram account.

Lleyton and Bec with their only son Cruz at a motorsports event.

Lleyton cuddles up with his youngest, Ava.

Over the years, the family have lived in the Bahamas, Palm Beach, Sydney and Melbourne.

Proud mum Bec poses with her three children for an exclusive shoot with The Australian Women's Weekly in 2013.

Mia and Ava join Lleyton on court during his retirement speech in 2016.

The next generation of Hewitts are ones to watch.

Bringing back the peace and pout.

There's nothing like the bond between sisters.

Growing up before our eyes!

"hen did you get so big? You're my favourite little dude! You have the kindest heart. I am so proud of you Dooza! Happy 11th Birthday buddy!" Bec captioned her birthday dedication.

Lleyton isn't the only star athlete in the family.

The gang + Goofy is all here!