The photo unveiled a blue-and-white card with "Oh boy, welcome Baby Marner" written on it, as well as cookies with themes of babies.
Stephanie also posted some of her personal photos, including an adorable photo of Mitch with her baby bump. The two, who first knew each other in their days in Markham, Ontario, married in the summer of 2023.
As much of a fun-lover as he was, Marner always had a soft spot in his heart for kids. Before his retirement, Patrick Marleau would have Marner come over with his four sons, with whom Mitch would be the elder brother of sorts.