Swansea secured their place in the final of the Capital One Cup after playing out a 0-0 draw at home to Chelsea in their semi-final second-leg - with the Swans winning 2-0 on aggregate.
Demba Ba looked to have earned a penalty just seven minutes in when he knocked the ball past Ben Davies and seemed to be fouled, but the referee waved play on.
The Swans responded through Wayne Routledge who saw his well-struck volley deflected behind for a corner before Petr Cech made a superb save to keep out Michu.
Eden Hazard's shot in the 22nd minute did not have enough power to trouble the goalkeeper while Ramires managed to squeeze a shot through a number of players but not past the stopper.
Chelsea tried to step up the pace as the half came to a close but Swansea stood firm to hold onto their aggregate lead.
Ba had a decent attempt six minutes into the second period but it sailed just wide from 20 yards out before the Senegal forward was denied by a brilliant save with 17 minutes to go.
There was controversy soon after when Hazard got into a scuffle with a ball boy who tried to slow play down, and after a melee had sparked off, Chris Foy decided to give the Belgium international an early shower.
Despite being a man down, Chelsea tried to find a late route back into the game but Swansea made the most of their advantage to see out the victory and booked their place in the final.