WEST BROMWICH, ENGLAND - MARCH 04: Mamadou Sakho of Crystal Palace and Jake Livermore of West Bromwich Albion combine to collide with the referee Mike Jones  as they challenge for the ball during the Premier League match between West Bromwich Albion and Crystal Palace at The Hawthorns on March 4, 2017 in West Bromwich, England. (Photo by Adam Fradgley - AMA/West Bromwich Albion FC via Getty Images)