LONDON, ENGLAND - DECEMBER 19: Costel Pantilimon and Patrick van Aanholt of Sunderland fail to stop the header by Branislav Ivanovic of Chelsea to make 1-0 during the Barclays Premier League match between Chelsea and Sunderland at Stamford Bridge on December 19, 2015 in London, England. (Photo by Clive Rose/Getty Images)
