Midfielder Caulfield received a second yellow card for a mistimed tackle on Kielt in the 13th minute.
Brits was shown a yellow card, meaning he had to leave the pitch for 10 minutes.
Down sub Colm Murney was sent off after getting his second yellow card on 55 minutes.
The referee, perhaps predictably, showed him the yellow card and told him to retreat 10 yards.
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The striker was shown a yellow card during Sunday's 3-0 win over third-placed Hibernian at Ibrox.
And Atletico responded with some crude challenges which saw Valera get a late yellow card.
He would have been ejected, as it would have been Balotelli's second yellow card.
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Referee Marco Rodriguez obviously saw the incident differently as he gave Estrada a second yellow card.
Referee Peter Jones consulted his linesman, but gave a yellow card to a lucky Keown.
The visitors had substitute striker Stefan Maierhofer sent off in injury-time for his second yellow card.
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Ballack was so incensed he protested alongside the referee for 40 yards before getting a yellow card.
The ref can even give you a yellow card if you talk too much trash to him.
Standard operating procedure is for the referee to warn them and then show them a yellow card.
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Rodwell was shown a yellow card by referee Dowd for a reckless lunge on Nigel de Jong.
No sooner had Thomson put his yellow card back in his pocket than Rangers doubled their lead.
But things started to go wrong for George Neill's side when Campbell got his second yellow card.
Diouf's second yellow card came after full-time as he allowed his annoyance with the officials to boil over.
The Macedonian players surrounded Brown to complain and in the ensuing melee, McFadden was shown a yellow card.
Pompey midfielder Sean Davis was unlucky to be sent off with 10 minutes remaining after a second yellow card.
Goalscorer McGowan was fortunate to escape without even a yellow card for reacting angrily to a clumsy Sproule challenge.
Authorities say the teen punched Portillo after the youth was called for a foul and issued a yellow card.
His replacement Carles Puyol picked up a yellow card, which means he will be suspended for the return leg.
Moments later Ulughbek Bakaev was dismissed after picking up his second yellow card.
As the game headed to penalties, things went from bad to worse when Apam received his second yellow card.
Saul Molapo was sent off for a two-footed tackle and Tony Coyle after picking up a second yellow card.
Australian referee Stuart Dickinson showed Shaw the yellow card in the 37th minute of the game at Ellis Park.
He ruled that Luke McAlister's collision with Yannick Jauzion was worthy of yellow card for the All Black center.
Irish referee Donal Courtney sent off the Newcastle forward, while Gough received a yellow card and a split lip.
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The Dons' cause was further hampered when striker Miller was sent off after picking up a second yellow card.
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