Brianne Theisen and Ashton Eaton welcome baby boy

The Canadian heptathlon record holder and her husband welcomed their new baby, Ander, on January 21

Brianne Theisen-Eaton and spouse announce pregnancy

The retired multi-event athletes will welcome their first baby in February 2020

What Olympic medallist Brianne Theisen-Eaton wishes she knew before her first marathon

Advice for first-time marathoners from an Olympic medallist