Ronny Deila has branded Dundee United ’ s Aidan Connolly a diver - then called on the SFA to prove they don ’ t just punish Celtic players for simulation . Connolly tumbled to win United ’ s goal from the penalty spot - scored by Nadir Ciftci - towards the end of the first half after ref Craig Thomson deemed he had been tripped by Anthony Stokes . In August , Celtic winger Derk Boerrigter was handed a two-match ban for diving to win a penalty in a 2-0 win at St Johnstone . And Deila insisted he was baffled as to why it ’ s only his team that is targeted – albeit he was seemingly unaware St Johnstone ’ s Brian Graham was also suspended for diving to win a penalty against Inverness in December . Celtic manager Ronny Deila wants retrospective action after claiming Aidan Connolly dived to win a penalty . The referee points to the spot after Connolly was brought down in the Celtic box during Scottish Cup clash . Celtic keeper Craig Gordon fails to stop Nadir Ciftci from giving Dundee United the lead at Tannadice . ‘ The United penalty was a dive and hopefully it will be the same rules for everybody , ’ fumed Deila . ‘ We are the only team this season in the league to have a suspension for diving , Derk Boerrigter . ‘ I said at the time it was no problem because that is the line that will be taken by everyone . But I don ’ t think anybody has had it since then . The Scottish players have been unbelievably good . They ’ ve not dived but if they do ( like Connolly ) it should be the same rules . ‘ Is it the fault of the ref or the player they got a penalty ? It ’ s both . But I accept people make mistakes . We have a rule where people look at things afterwards but I don ’ t see anybody else getting suspensions. ’ Celtic defender Virgil van Dyke ( right ) was sent off after only nine minutes of the Scottish Cup quarter-final . In what appeared to be a case of mistaken identity , the referee also sent off Dundee United 's Paul Paton . Dundee United had a second player sent off after Paul Dixon ( 3rd left ) receives his marching orders . Deila will study footage of the melee that saw Virgil van Dijk ordered off alongside Paul Paton before deciding whether to appeal in a bid to clear him for Sunday ’ s League Cup final against United at Hampden . But Stefan Johansen will miss the Scottish Cup quarter-final replay at Parkhead on March 18 after being booked yesterday . ‘ I have looked at some pictures but it ’ s hard to see what happened , ’ said Deila . ‘ Virgil just said there was a tackle and suddenly somebody was holding his legs . There was some kicking of each other to get off each other . It was nothing . 'Hopefully everybody can play in the next game . Will we appeal ? We will see . I actually didn ’ t know until now that Stefan is out of the replay . It ’ s good we have a big squad. ’ Leigh Griffiths missed his chance to equalise for Celtic from the penalty spot . Griffiths made up for his penalty miss by drawing Celtic level with a header . Celtic captain Scott Brown celebrates with Griffiths as the game finishes in a 1-1 draw . Deila didn ’ t fear any further disciplinary problems in the final but took a swipe at the abysmal Tannadice pitch . ‘ There is going to be a high temperature , yes , but I ’ m not worried . It is fantastic . That ’ s why we love football . We are fighting for big things , trophies , and we have to keep our discipline . But the pitch made it a fight today . It was nothing about playing football . If you are going to develop players in this league , you have to have pitches you can play on. ’ Meanwhile , the SFA compliance officer could be forced to look at footage from Dutch TV in which Celtic ’ s John Guidetti is alleged to have performed a song during an interview including the words ‘ the huns are deid ’ . A recent petition lobbying the Scottish Parliament was launched by a group of Rangers fans who claimed ‘ huns ’ is a derogatory term used against Protestants .
William Hill Scottish Cup quarter-final ended in a 1-1 draw at Dundee United 's . Referee sent off Celtic defender Virgil van Dyke and Tannadice Paul Paton ( in a case of mistaken identity ) and Paul Dixon . Ronny Deila has accused Aidan Connolly from diving to win a penalty . Nadir Ciftci opened the scoring for the hosts from the penalty spot . Leigh Griffiths missed a penalty before equalising for the Hoops .