Speed skating's greatest current (friendly) rivalry, featuring USA's Brittany Bowe and Heather Bergsma, has helped push both to new heights

U.S. speed skaters Brittany Bowe was the best in the world this season, but teammate, rival and friend/training partner Heather Richardson Bergsma was right behind. My story on their World Cup seasons for TeamUSA.org: http://www.teamusa.org/News/2016/March/15/In-One-Of-Team-USAs-Greatest-Rivalries-Speedskaters-Bowe-And-Bergsma-Cap-Season-With-45-Medals