Two of the world's greatest hockey players just had a baby: Former rivals Julie Chu, a member of the U.S. women's ice hockey team, and Caroline Ouellette, from the Canadian national women's ice hockey team, welcomed daughter Liv on November 5. The couple announced their daughter's arrival in dual Instagram posts.

"I am so blessed to live this incredible moment with the love of my life and my best friend Julie," Oullette wrote. "I did not think it was possible to love so much before meeting her!"

"We have already been blessed with so many things in our life: Amazing friends and family, Love, Representing our countries, and doing things we are passionate about each day," Chu wrote.

"We couldn't have felt luckier, until we were blessed with the most incredible gift so far... [Caroline] and I are happy to introduce our greatest blessing: Liv Chu-Ouellette."

Oullette is a four-time Olympic gold medalist and five-time world champion, while her wife tied as the second-most decorated U.S. female in Olympic Winter Games history. The two have played against each other since college—Oullette was at the University of Minnesota Duluth and Chu at Harvard, where she became the all-time leading scorer in NCAA history (Ironically, both women played forward and wore the number 13.)

Chu and Oullette were both captains on their respective college and national teams, and are now teammates on the Canadiennes de Montreal in the Canadian Women's Hockey League, which took the Clarkson Cup championship last spring.

With a new member on their family roster, though, the ladies are taking a break: Chu is head coach at Concordia University and Ouellette will be the primary caregiver to little Liv.

"Our summer was spent teaching the sport we love with our best friends," Ouellette wrote. "Thank you to all our families and friends for your support and to be part of this adventure. Cheers at sleepless nights coming!"

Some friends are already envisioning Liv's future on the ice.