Heather Moyse, a two time Olympic gold medallist as a brakeman in bobsled is coming back from retirement for to try for the Olympics in Pyeongchang, she worked out at the Athlete Training Centre [Getty Images]

MISSISSAUGA, ON- OCTOBER 27 - Heather Moyse begins her workout on the roller. Heather Moyse, a two time Olympic gold medallist as a brakeman in bobsled is coming back from retirement for to try for the Olympics in Pyeongchang, she worked out at the Athlete Training Centre in Mississauga. October 27, 2017. (Steve Russell/Toronto Star via Getty Images) — see more

MISSISSAUGA, ON- OCTOBER 27 - Heather Moyse begins her workout on the roller. Heather Moyse, a two time Olympic gold medallist as a brakeman in bobsled is coming back from retirement for to try for the Olympics in Pyeongchang, she worked out at the Athlete Training Centre in Mississauga. October 27, 2017. (Steve Russell/Toronto Star via Getty Images)