LONDON, ENGLAND - DECEMBER 11: Diego Costa (2nd R) of Chelsea celebrates scoring the opening goal with his team mates Gary Cahill (1st L), David Luiz (2nd L) and Willian (1st R) during the Premier League match between Chelsea and West Bromwich Albion at Stamford Bridge on December 11, 2016 in London, England. (Photo by Julian Finney/Getty Images)
