article_snippet: The whistler then instantly dismissed Tannadice captain Sean Dillon for a dangerous tackle on Celtic defender Emilio Izaguirre in 56 minutes, thus ending any hopes of a Dundee United comeback.
article_snippet: Dundee United's captain Sean Dillon is sent off by referee Bobby Madden for a tackle on Emilio Izaguirre .
article_snippet: Dundee United captain Sean Dillon (right) is sent off for this late challenge on Celtic defender Emilio Izaguirre .
highlights_snippet: Dundee United captain Sean Dillon sent off for late a late challenge on Celtic defender Emilio Izaguirre .