Chelsea’s Cesar Azpilicueta (right) and Gary Cahill (left) during the Premier League match at the Etihad Stadium, Manchester. Saturday December 3, 2016.

Chelsea's Cesar Azpilicueta (right) and Gary Cahill (left) during the Premier League match at the Etihad Stadium, Manchester. Saturday December 3, 2016.

Chelsea’s Cesar Azpilicueta (right) and Gary Cahill (left) during the Premier League match at the Etihad Stadium, Manchester. Saturday December 3, 2016.