LONDON, ENGLAND - JANUARY 08: Thibaut Courtois of Chelsea warms up before the Emirates FA Cup Third Round between Chelsea and Peterborough United at Stamford Bridge on January 8, 2017 in London, England. (Photo by Catherine Ivill - AMA/Getty Images)

LONDON, ENGLAND - JANUARY 08: Thibaut Courtois of Chelsea warms up before the Emirates FA Cup Third Round between Chelsea and Peterborough United at Stamford Bridge on January 8, 2017 in London, England. (Photo by Catherine Ivill - AMA/Getty Images)