Eurosport - Swansea winger Nathan Dyer, centre, celebrates Seb Hines' own goal
The Swans reached only a third semi-final in top-flight cup competitions in their 100-year history thanks to an 81st-minute own goal from Boro's Seb Hines.
Hines could not clear a Swansea corner as the Barclays Premier League side exerted sustained late pressure, and the ball flew off him and past Boro goalkeeper Jason Steele.
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Pitchside Europe - Wed, May 22, 2013 19:26 BST