WATFORD, ENGLAND - APRIL 01: Darron Gibson of Sunderland (L) and referee Lee Probert check that Jermain Defoe of Sunderland (R) is okay after going down during the Premier League match between Watford and Sunderland at Vicarage Road on April 1, 2017 in Watford, England. (Photo by Clive Rose/Getty Images)
