Brisbane Boy Leo Shares Unique Connection with Football Icon Lionel Messi

In the Slattery household, bedtime often features a familiar story. Liam Slattery regularly reaches for a children's book on his shelf detailing the life of football superstar Lionel Messi. His six-year-old son, Leo Slattery, shares more than just a first name with the legendary athlete; he also shares a medical journey.

Liam Slattery explained that his son was diagnosed with a rare condition at a young age. "We used to read that story to our Leo. He got diagnosed with growth hormone deficiency when he was three," Liam said. "It was a positive story to put towards him that, 'hey, yeah, he's got the same thing as you'."

Growth hormone deficiency stems from the pituitary gland producing insufficient amounts of growth hormone, which is vital for childhood development and maintaining normal adult body structure. Dr. Peter Simm, a paediatric endocrinologist at the Royal Children's Hospital in Melbourne, explained that treatment typically requires synthetic growth hormone injections, which can now be administered weekly or nightly until puberty ends.

"Then once they reach towards the end of growth, they get reassessed to see if they are still deficient in growth hormone," Dr. Simm said. "Then there has to be a decision about whether they need to be treated as adults because growth hormone has more effects than just on growth."

A Long Road to Diagnosis

For Liam and his wife Mia, securing a diagnosis for their eldest son was a gradual process. They first noticed something was amiss when friends began asking if Leo and his younger brother were twins.

Seeking answers, the Brisbane couple consulted their GP, paediatricians, and eventually an endocrinologist. Liam recalled their first specialist visit: "When we first saw [the endocrinologist], she thought, 'he doesn't present like a child with that condition, but let's do all the tests anyway and rule it out for sure,'" he said. "So even a doctor originally thought, 'I don't think this child does have it, but then run the test anyway', was so important." He added, "Our medical system kind of referred everything on and go all those steps."

Their positive experience with the Australian healthcare system stood in stark contrast to the challenges faced by families overseas. Mia, who connected with international support groups online, heard of the immense financial and bureaucratic hurdles in other countries.

"Hearing stories of where they have to fight tooth and nail with insurance companies and doctors to try and get their child diagnosed," Liam noted. "In America, if insurance doesn't cover it, it's thousands and thousands of dollars." According to the US National Library of Medicine, the average annual cost for patients with growth hormone deficiency is $US18,069 under Medicaid and $US27,893 under commercial insurance.

Fortunately, the Australian Pharmaceutical Benefits Scheme (PBS) drastically lowers these costs. "I was looking at the box for one of his first treatments and it was $2,500 for the treatment," Liam shared. "We paid $60 because it was covered under PBS. So yeah, very thankful that we do have that system in Australia."

Messi's Medical Lifeline

In contrast, Argentina does not subsidise growth hormone deficiency treatments. This financial barrier forced a 13-year-old Lionel Messi to leave his home club, Newell's Old Boys, in search of affordable healthcare.

Before his departure, Messi asked his endocrinologist, Diego Schwarzstein, if he would ever grow. Dr. Schwarzstein famously responded, "You will be taller than Maradona,"

In 2000, Messi found his lifeline when FC Barcelona stepped forward as the only club willing to cover his medical expenses. The legendary agreement was secured during a late-night dinner, where Barcelona's sporting director at the time, Carles Rexach, drafted a contract on a paper napkin on December 14, 2000. That historic napkin eventually sold at a New York City auction in 2024 for $US965,000.

Reflecting on the life-changing move, Messi later told Match of the Day magazine: "It wasn't difficult for me to move to Barcelona because I knew I had to," He added, "I needed money for my medicine to help me grow and Barcelona [was] the only club that offered. So as soon as they did, I knew I had to go."

Adjusting to the treatment was not easy. Former youth academy teammate Victor Valdez recalled how hard those early days were for Messi. "Messi missed some training sessions because he felt dizzy after the injections. Some mornings, he could not come to school either, as he felt unwell," Valdez told the Athletic.

Messi's physical challenges continued when he broke his leg playing against older opponents during his first two years in Spain. "It was a huge blow for him. We did not see him in Barcelona for a while after that — he went back to Argentina for some time," Valdez said. "It was all part of a tough process, and some people might not even be aware of that. But what Messi had to go through was far from easy."

Unlimited Potential

Today, Messi's resilience offers profound encouragement to young patients worldwide. The Australian Pituitary Foundation emphasized that Messi's journey challenges preconceived limits.

"One of the powerful things about Lionel Messi's story is that he had a specialist who saw potential, not just a condition," the advocacy group stated. "That's what every patient deserves — someone who helps them see a diagnosis as the start of a journey, not a limit on what they can do."

Inspired by his hero, six-year-old Leo Slattery has recently started prep and is eager to join a local football club. He is already practicing regularly, training on Tuesdays and Thursdays with his nine-year-old next-door neighbour.

While preparing for his own debut, little Leo has been closely following Argentina's World Cup run, watching the matches alongside his supportive father.

"We were watching the game and I was like, 'Look at Leo Messi, look at how much shorter he is than everyone else — he's got what you've got," Liam said. "And it was a good reminder for him to go, 'oh, that's why I support Messi'."

Liam hopes this connection will serve as a source of strength for his son as he grows up. "If anyone does tell him he's too small or he can't do anything, he's kind of got something to fall back on where, yes, you can keep going. Keep going with all of it."