Stoke City manager Paul Lambert criticised the decision to award Cenk Tosun's contentious opening goal in Everton's 2-1 win at the bet365 Stadium on Saturday.
Tosun looked to be in an offside position as he attempted to head home Yannick Bolasie's cross in the 69th minute, before burying the loose ball amid a subsequent goalmouth scramble.
Stoke, who had Charlie Adam sent off on the half hour, quickly equalised through Eric Maxim Choupo-Moting, yet parity only lasted seven minutes as Tosun returned to net the winner and heap more pressure on a home side stuck in the Premier League relegation zone with only seven games to play.