Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Inevitably, it all kicked off in the end. Three games in two competitions over 10 days has forged some barely disguised contempt between Celtic and Dundee United. Six red cards tell their own tale. For Jackie McNamara’s team, the frustration — and indiscipline — is growing. Ryan McGowan became the fourth United player to see red in the dying minutes, seconds after Celtic’s Anthony Stokes was dismissed for a retaliatory kick at Paul Paton. Afterwards, Ronny Deila rounded on the Australian, claiming he could have injured substitute Liam Henderson ‘for life’. The open wounds enveloping this fixture are now there for all to see.Celtic comfortably progressed to the William Hill Scottish Cup semi-finalsJason Denayer, Leigh Griffiths, Kris Commons and Virgil van Dijk all scored for the hosts at Celtic ParkBoth sides ended with 10 men as Anthony Stokes and Ryan McGowan were sent off 
 Question:In a freakish run of three consecutive meetings, _ have now scored one, losing six.

Dundee United