"As a little girl, I dreamed of becoming a professional footballer, something that barely even existed at the time. I could never have imagined how far that dream would take me," Martens said in a statement posted on Instagram.
"Last year I waved goodbye to the national team and now I've decided myself to retire from club football as well. Despite having several great opportunities to continue, I've chosen to step away from the game I love so much and close this chapter of my career. Playing for fantastic clubs across Europe and representing my country 160 times has been an amazing honor. Every match, every moment on the pitch is a memory I will cherish forever. Football has given me unforgettable experiences, but more than that, it has shaped me into the person I am today.
"Now, the time feels right to take this decision. My greatest priority is to be the best mother I can be to Lowen and I am excited to embrace all that lies ahead. None of this would have been possible without the love and support of so many people: my family, my friends, my teammates, the staff who guided me and the fans who stood by me unconditionally. I am deeply grateful to each and every one of you. Football will always hold a special place in my heart and I will continue to watch with pride as the women’s game grows and inspires new generations. Just as it inspired me."