SHEFFIELD, ENGLAND - MARCH 18: Sheffield United's Billy Sharp goes down in the penalty area after a challenge from Charlton Athletic's Declan Rudd but his appeals for the penalty were turned down during the Sky Bet League One match between Sheffield United and Charlton Athletic at Bramall Lane on March 18, 2017 in Sheffield, England. (Photo by Chris Vaughan - CameraSport via Getty Images)
