The 27-year-old was just 17 when she played her first game for Glory against Sydney FC in 2008. She becomes the first player in Glory’s W-league history to reach the milestone as a one team player.

“It’s definitely something that I’m super proud of, it’s a massive honour to play for this club and to make 100 appearances is something that I’m really proud of,” she said.

She never envisaged making it to 100 games when she pulled the shirt on for her first game.

“I didn’t even know if it would continue for 10 seasons. I was young and I was just happy to be playing and for there to be a women's team was awesome, especially for a team that I grew up supporting. I was super stoked to be a part of it.”

The first squad back in the inaugural season was mostly local players who had grown up playing together through various State and NTC squads.

“We were really really close, which was probably a good thing being friends and playing together for a while, and when I look back at the team now, not many of them are playing anymore!”

This milestone brings into sharp focus the benefits her experience offers the current squad, and she feels that her calmness and experience helps the younger players in the team.

“I pick them up when they’re feeling low, calm them down a little bit, try to help them out as much as I can, and do my part in trying to guide them and mentor them and make sure they stay positive on the field and off the field as well,” May said.

Over the years she’s played with and against some of the finest players in Australia but singles out Matildas legends Collette McCallum and Sam Kerr as two of the absolute best.

“She (Collette) was one of my role models growing up. Training alongside her I learned a lot, positionally and tactically and she’s just an all-round great person,” May said.

“Sam Kerr, you can’t really beat playing alongside one of the best in the world, and growing up with Sam, its great to see where she’s got to.”

Apart from the upcoming centenary game, her proudest moment to date was the 2014 season with Glory when the team finished Premiers and earned a home grand final against Canberra.

“That week of training sums up why you play football. We were all in such good spirits leading up to the grand final, and everyone was excited," she said.

"We had quite a young team, but we were a really good close group with the likes of Caitlin Foord, Alannah Kennedy.

"That was definitely something I look back on and think that was a really good time."

A fulltime teacher, Shannon juggles the demands of her work with her football but feels that the two aspects of her life complement each other.

“Soccer is a good balance with school. If I’ve had a really busy day at school I know I can come to the soccer field and I feel free and I feel happy and can kick a ball around,” she said.

The current season has started well, and she feels that there is no reason why this can’t continue.

“We’re all pretty positive and our headspace is pretty good. We believe that we can stay at the top. The ladder is super close this season which makes it interesting, so every game is important. It’s definitely our goal to finish at the top or as close to the top as we can, and we’d be really disappointed if we didn’t make the top four.”

The game will be special for May, and it would be fitting if on her 100th appearance she found the back of the net, just like she did when she became Glory's first ever W-League goal scorer.