Cricketer Nathan Lyon poses for selfies with fans at Sydney Airport after jetting into the city with his wife Emma and their rarely-seen newborn baby

Cricket star Nathan Lyon and his wife Emma flew to Sydney on Tuesday with their newborn son.

The 36-year-old sported a low-key look consisting of a simple white T-shirt and black shorts as he posed for selfies with eager fans on the luggage carousel.

She completed her look with a green cap and wore a pair of white sneakers.

After collecting his bags, Nathan was seen leaving the airport with his wife Emma while pushing their baby in a stroller.

He dressed casually in a black t-shirt, pants of the same color, and a pair of red sneakers.

The athlete and WAG have kept their new arrival a secret, keeping the pregnancy a secret and avoiding the birth announcement.

They did a great job of keeping their baby a secret, and Emma appeared to have carefully edited the photos she posted on Instagram, even when she was on the Ashes tour with her husband from July to August.

Emma cleverly hid her growing baby bump with a series of clever styling tricks.

She was last photographed by paparazzi in May, dressed in a coat that would have covered any telltale signs of a growing baby bump.

A source with impeccable links to the Australian cricket team exclusively gave Daily Mail Australia some details about the newborn in November.

Our source revealed that the spin king never felt the need to tell his teammates and partners to keep their knowledge of the newcomer a secret.

“Everyone knew it, it was not a secret, we were not sworn to secrecy, it was simply not news that anyone else could reveal,” they explained.

While he remained tight-lipped about the details, the source accidentally let the sex of the couple’s newborn slip.

“I don’t know your name, I’m sorry,” they said.

“They choose not to lead a public life and if they choose to keep their pregnancy a secret, that’s their business,” the source added.

Nathan and Emma have been fiercely private from the beginning, and when their relationship progressed to getting engaged, they tried to keep their July 2022 nuptials out of the press.

“They choose not to share that information or their pregnancy with the public or the media, so it’s not anyone else’s place to announce their news for them,” the source revealed.

Nathan and Emma bought their Sydney home together in 2020. Rumors began to circulate that their engagement was on.

That was later confirmed when Emma was seen wearing a hefty engagement ring on her finger in the fourth Test against India at the Gabba in 2021, while also posting about her search for a wedding dress on Instagram.

The couple married in 2022 and shared a photo from their outdoor wedding in July of that year.