A group of more than 200 people — including close friends and former teammates — have pledged to run Sunday’s Run For a Reason in honour of Adam Selwood.

The West Coast premiership hero died in Herdsman on Saturday, just three months after his identical twin brother Troy died by suicide in Geelong.

Selwood had been set to take part in Sunday’s charity run to raise funds for youth mental health organisation Zero2Hero.

That campaign had raised more than $21,000 when on Saturday, but that has swelled to almost $60,000 in the wake of his death.

Zero2Hero — a Perth-based suicide prevention charity — will facilitate a gathering for the group of runners after the event on Sunday.

The organisation’s founder and chief executive Ashlee Harrison told The West Australian she was overwhelmed by the support for Selwood’s campaign and said their were focused on putting those funds to good use.

She said they would work with the family down the track on a way to honour the champion footballer’s legacy in supporting youth mental health.

“This is not about our charity, this is much bigger than our charity,” Ms Harrison said.

“This points to a huge issue within mental health and the suicide prevention space. It is going to require all of us to prevent suicide in our country and in our communities.

“I have been and we have been overwhelmed by the public support of Adam’s cause and of our organisation and we are extremely passionate about ensuring those funds support Adam’s wishes.

“As part of that there may be a bigger piece to support Adam’s legacy, but it’s too soon to tell and that will be dependent on the family’s wishes.”

The groundswell of donations to Selwood’s charity page have been accompanied by some stirring messages from friends and fans.

“My deepest condolences for the Selwood family. Adam was such a kind and genuine man, who made such a positive impact on those around him,” donor Logan said.

“A tragic loss. Thoughts are with the entire Selwood family. If you’re someone struggling, please know there are so many people and places to seek help from. You are not alone and you can get through this,” another donor Bec said.

The youngest Selwood brother, Geelong football legend Joel, posted his own stirring tribute to his brother in an Instagram post late on Wednesday.

In his exclusive column for The West on Thursday, Eagles champion and former teammate Jeremy McGovern penned an emotional tribute to Selwood.

“He left a legacy as the perfect teammate who flew under the radar — the man who would do all the hard work when he played, do the dirty work, take the tag and take the best small forwards,” he wrote.

“What you saw is what you got with Sellers, he was one of the most honest and upfront people I ever met. He was the type of bloke who would straight away put a smile on your face.

“Sellers was universally loved at the club. You would never hear a bad words said about him. He was loyal as anything and will always be held in the highest regard inside our four walls and, I’m sure, out of it too.

“He challenged you to be better, set a high standard when it came to training but was an absolute laugh who had a lot of fun as well.”