Sabrina Pfeifer, from the US, was dressed head to toe in her hockey gear - including her helmet - but put time aside to feed her daughter Kaci.
“My pre-game routine is a little different these days,” the caption on the photo, shared on Breastfeeding Mama Talk, read on Facebook.
Pfeifer has been playing hockey since she was in school.
Since giving birth to Kaci five months ago, she has been determined to keep the sport in her life.
The new mum said she feels grateful she has the ability to breastfeed her daughter on the sideline.
“It’s heartbreaking when I read or hear stories of other women who have not had such an easy go with it or get harassed for simply providing nourishment for their child,” she said, according to Elite Daily.
Commenting on the photo, one mother wrote: “The many hats we wear as a mother. A woman at her finest. Ready to kick some ass.
“Absolutely love it.”
Another wrote: “This is so inspiring and yet another woman normalising breastfeeding as she should be. Well done.”