But before Oshie competes in the men's Quarterfinals, which airs Wednesday on NBC at 8 p.m. ET, here are five things to know about the woman behind the man whose shootout skills put the U.S. over Russia.
1. She's pregnant
The couple is expecting their first child, a daughter, on St. Patrick's Day. "Me and baby girl are proud of him," she said after watching Ochi, 27, score four goals at the Sochi competition.
2. Junk food is the key to her heart!
Cosgrove has been posting pics of her favorite meals since before she was pregnant. "Hell to the yizzay," she Tweeted after posting photo of a dozen Krispy Kreme doughnuts. "My taste buds are in heaven!" she wrote about a snapshot of burgers, fries and a milkshake. As for what tops them all? "Can't go wrong with a little Ruth's Chris #favoriterestaurant," she Tweeted about the steakhouse on May 7.
3. She's a Midwestern girl
Cosgrove is a Minnesota native and the couple met in North Dakota. They currently live in St. Louis, where he plays for the Blues.
4. She's a fan of Channing Tatum
Sorry T.J., but you're not the only guy she finds hot. "Holy hell … Could you get any better looking??" she Tweeted about Tatum's PEOPLE Sexiest Man Alive cover.
5. She coordinates their costumes
Whether it's for Halloween or a night out, Cosgrove is in sync with her man.
Courtesy Lauren Cosgrove (3)