The reigning European champions beat Leeds United 5-1 at Elland Road tonight to book their spot in the final four with a two-legged meeting with the Swans, who knocked out Middlesbrough in the quarter-finals, to come early next year.
Chelsea will host the first leg at Stamford Bridge in the week commencing January 7 with the return bout to be played at Swansea’s Liberty Stadium on the week commencing January 21.
In the other semi-final, five-time cup winners Aston Villa will meet giant killers Bradford City with the first leg taking place at Valley Parade prior to the Villa Park second fixture.
Villa hammered Norwich City 4-1 in the last round whilst League Two Bradford, into the final four for the first time in history, got the better of Arsenal in a penalty shootout after extra-time ended 1-1.
The winners of the two semi-finals will face off in the Capital One Cup final at Wembley Stadium on February 24, 2013.