Swansea City have an unlikely 1-0 lead over Chelsea after the first half of their Capital One Cup semi-final first leg at Stamford Bridge.
Although they were second best throughout the opening 45 minutes, the Swans got themselves in front against the run of play through Michu's goal.
Despite a succession of early corners, it took Chelsea 27 minutes before they carved out their first real opportunity through Juan Mata.
The Spaniard was fed by Eden Hazard in the area, but his tame shot was held by Gerhard Tremmel.
Mata was involved again soon after, only to see his effort drift narrowly wide from Fernando Torres's cross.
Despite a quiet performance, Michu gave Swansea the lead in the 39th minute when he fired in following a mistake from Branislav Ivanovic.
The Chelsea defender was caught in possession on the edge of his own area, which allowed the Spanish forward the chance to smash the ball past Ross Turnbull.
