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 initially 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.
Lambert said he understood referee Martin Atkinson's decision to dismiss Adam, but the Potters boss was upset by the manner in which his team's dogged rearguard came undone.
"I thought the first goal was offside. Well it is offside because I have seen it," Lambert told the club's video channel.
"The thing that disappoints me most is that it is the linesman's side. He is looking right across the line. How he has not seen that is disappointing.
"The response with 10 men to going a goal behind was fantastic. I thought we were well in the game, but the first goal is offside.
"He has got to call that right. You cannot get that wrong. It gave Everton something to hang on to."
Conversely, Everton boss Sam Allardyce praised Turkey international Tosun for securing the Toffees a first Premier League away win in seven attempts.
"It looked a bit iffy for us again but Cenk popped up with a super goal and that is why we bought him," Allardyce said of the striker, a January signing from Besiktas.
"It has paid dividends for us and it puts us on the 40-point mark, and even though mathematically we are not safe I do not think anyone can catch us now and we can start to prepare for next season."
19. November 2018
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|Mancini bemoans Italy´s misfortune in front of goal|
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|Bournemouth defender Adam Smith out for three months|
|World champions France out to end 2018 on a high|
|I told him there´s no future in football! A-Rod relieved to be ignored by Mahomes|
|Dembele must focus and be more responsible - Suarez|
|Neymar could return one day – Barca chief|
|Cole backs West Ham to keep Arnautovic|
|Injury rules Bernardo Silva out of Poland clash|
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|Babar run out the turning point, laments Sarfraz|
|West Ham boost London Stadium capacity to 60,000|
|A great advertisement for Test cricket - Williamson revels in stunning win|
|Van Dijk one of the world´s best - Klaassen|
|Floersch had ´angel on her shoulder´ in horror crash|
|Gascoigne charged with sexual assault|
|I am going to stay at Chelsea and fight, insists Giroud|
|Hansen to make announcement on All Blacks future|
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|Bonucci tells Italy boo boys to ´live with less envy´|
|Dramatic Pakistan collapse gives Stead first New Zealand Test win|
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|Dortmund chief not planning Pulisic sale|
|Theismann: Smith leg break ´heart-wrenching´ to watch|
|Wolves defender Jonny suffers knee injury|
|Holmes to meet with Sharks amid NFL switch talk|
|LeBron made 51 points ´look easy´, says Walton|
|McGuire signs four-year deal with Cowboys|
|Bears beat Vikings to extend NFC North lead|
|Peng overcomes Davis in Houston final|
|Kerr says this has been his toughest stretch as Warriors coach|
|LeBron scores 51 in Lakers´ win, Warriors fall to Spurs|
|Win more than Djokovic? Let´s chill out – Zverev|
|Steelers´ rally highlights wild day of close, last-minute finishes|
|Modric not worried about Ballon d´Or|
|Saints pull away for blowout victory over Eagles, extend winning streak to nine|
|Martinez laments loss of control by Belgium|
|Logano claims first NASCAR Cup championship|
|Luis Enrique delighted with attitude of Spain´s squad|
|Stevens tells Celtics to get ´tougher´|
|Griezmann: Being Messi´s lieutenant played a part in rejecting Barcelona|
|Curry proud of how Warriors handled Green-Durant incident|
|Courtois: Belgium thought Nations League job was done|
18. November 2018
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|Robben dismisses Bayern title talk|
|Huge blow for Redskins as QB Smith breaks tibia and fibula|
|Switzerland 5 Belgium 2: Seferovic treble crowns incredible comeback|
|Titans DC Pees taken to hospital during Colts game|
|Spain 1 Bosnia-Herzegovina 0: Debutant Mendez spares Morata´s blushes|
|Peterson goes sixth on rushing touchdowns list|
|Titans QB Mariota suffers elbow injury|
|Djokovic hails much-improved Zverev|
|Arnautovic refuses to discuss West Ham future after Austria win|
|Redskins QB Smith carted off after gruesome ankle injury|
|Jaguars shut down Jalen Ramsey trade rumours|
|Classy Zverev revels in victory, hails defeated Djokovic|
|Forget the Nations League was ever invented, jokes Northern Ireland boss O´Neill|
|Magnificent Zverev claims ATP Finals title|
|Mahrez double fires Algeria to 2019 AFCON|
|Mbappe hoping for French winner of Ballon d´Or|
|Northern Ireland 1 Austria 2: Last-gasp winner denies hosts maiden Nations League point|
|Teenager admits assaulting Wales great Thomas|
|Browns deny Condoleezza Rice is candidate for head coaching job|
|Koeman: Netherlands not favourites for Germany clash|
|Dalic ´not sad´ but blames fatigue for Croatia relegation|