The Manchester United Women skipper leads by example, scores and assists crucial goals and most importantly inspires our young supporters.
The England international has had quite the journey throughout her career. Zelem started off in United's youth system and also played for both Liverpool and Juventus before returning to captain her childhood club in 2018.
In an interview to mark International Women's Day, which we're celebrating all month, Katie outlines the key obstacles she overcame when pursuing a career in football.
"I think when I was younger, it was an all-boys team that I used to play in and a lot of the lads, and to be honest mostly the parents, used to shout stick from the side," she said.