CAPITAL ONE CUP - Quarter-final: Own-goal allows Swansea to progress at expense of Middlesbrough
Boro were unlucky to concede in the 81st minute when Seb Hines headed Jonathan de Guzman's corner into his own net after they were just as good as their Premier League rivals for most of the night.
After the goal, Hines went extremely close to an equaliser with minutes remaining but his back post header, from about a yard out, flew over the crossbar.
Tony Mowbray's side had a great chance to level the fifthminure of injury-time when Scott McDonald was unable to reach a gilt-edged, sliding chance after Ishmael Miller provided a low ball across the six-yard box.
It was a harsh result on the Teessiders who dominated patches of the match but in the end, an unfortunate own-goal allowed Michael Laudrup's Swansea to book their spot in the final four alongside Aston Villa, Bradford City and the winner of next week's meeting between Leeds United and Chelsea.