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LONDON, ENGLAND - MARCH 11: Branislav Ivanovic of Chelsea and Maxwell of PSG compete for a header during the UEFA Champions League Round of 16, second leg match between Chelsea and Paris Saint-Germain at Stamford Bridge on March 11, 2015 in London, England. (Photo by Mike Hewitt/Getty Images)

LONDON, ENGLAND - MARCH 11:  Branislav Ivanovic of Chelsea and Maxwell of PSG compete for a header during the UEFA Champions League Round of 16, second leg match between Chelsea and Paris Saint-Germain at Stamford Bridge on March 11, 2015 in London, England.  (Photo by Mike Hewitt/Getty Images)