Inspirational cancer survivor Matilda Pitts described her day with the West Coast Eagles as amazing and said seeing them warming up in the T-shirts that she designed was the clear highlight.

On Sunday, West Coast and Collingwood joined forces to raise money for Telethon at Optus Stadium, but it was also a day where Matilda inspired the community with her courage.

Having been diagnosed with a rare and aggressive spinal cancer, malignant peripheral nerve sheath tumour, at just 12 years old — and then fought a battle which threatened to stop her from walking again — Matilda had Eagles players and fans feeling emotional after hearing of her story.

The Eagles threw their arms around her both emotionally and physically, as they warmed up in the T-shirts that she designed, and hugged her as they ran out onto the ground.

The colourful T-shirt was filled with vibrant flowers, butterflies, rainbows and dragonflies.

The pink on the front matched perfectly with Harley Reid and Willem Duursma’s boots.

The light blue on the back was the same colour as Bo Allan’s boots.

The sun beating down on Optus Stadium in the middle of the day made the T-shirt even more striking.

Coach Andrew McQualter even had a T-shirt of his own.

Matilda then tossed the coin alongside Telethon star Jordan Blair and said then it was a day she will never forget.

“It was amazing,” she told The West Australian from inside the Eagles’ changerooms after the game.

“Seeing the players in my shirt was the highlight. It was exciting tossing the coin but I was also really nervous.”

Matilda asked the Eagles to celebrate goals with a “six-seven” signal.

And it took less than one minute for them to oblige.

Jobe Shanahan kicked the first goal of the match after only 48 seconds and the 20-year-old instantly signalled “six-seven.”

Jack Graham also followed suit after a running goal during the second quarter.

It was a huge day for Telethon.

The players from both teams ran through a joint banner. It was half blue and gold and half black and white, with the words “Coming Together For Telethon” written on the front.

Telethon kids formed the guard of honour and Fat Cat received a huge ovation from the crowd.

The Eagles also held a “Take Your Seat for WA Kids” campaign, selling virtual seats for the day.

Matilda’s mum Natasha said the family was incredibly thankful for how much the community had embraced them all.

“It was so much fun. We have felt the community wrap its arms around us and it has really been a moment of joy among a lot of stress. She’s feeling like quite the celebrity,” she said.

West Coast’s AFLW stars joined the Telethon celebrations and raised $50,000 at quarter-time as part of a one-minute marking competition — the more marks they took, the more money they raised.

WA Formula 1 star Daniel Ricciardo was cheering on his beloved Eagles and Italian soccer players were also at the game.

But this was a day where Matilda Pitts became the true star of the show.

West Coast veteran Elliot Yeo said Matilda had inspired him with her story.

“I have thought about it a lot this week,” he said.

“When you are younger, you feel emotional and sad, but when you have your own kid, it hits you at a whole different level. I’m emotional now.

“The amount of resilience her family have shown and the strength and courage that she has is amazing.

“She is a trooper. You try to put yourself in that position as a parent and it breaks your heart. I count my lucky stars every day.”