Manchester City pressure puts them two goals up and a Chelsea revival can only claw one back, so the northern side are through to an FA Cup final pitting them against near neighbours Wigan.
LONDON, UK (APRIL 14, 2013) (PITCH) - Goals from Samir Nasri and Sergio Aguero sent Manchester City into an FA Cup final against Wigan Athletic after they beat holders Chelsea 2-1 at Wembley on Sunday (April 14).
The 2011 winners will return on May 11 after they held off a strong fightback from a Chelsea side playing their sixth game in 16 days.
Frenchman Nasri gave City, who also beat Chelsea to win the season-opening Community Shield, a lead they more than deserved when he fired home after 35 minutes; Argentine Aguero headed a second two minutes into the second half.
Demba Ba's acrobatic volley on 65 minutes inspired a Chelsea revival, but City held their nerve.
City set the tone for a dominant opening half when Chelsea captain and goalkeeper Petr Cech clawed away Aguero's early effort from close range and the Blues, with only two days full rest after their Europa League trip to Moscow, soaked up almost continual pressure.
City captain Vincent Kompany headed off the line to stop Eden Hazard from scoring and they made the most of the let-off, going ahead when Chelsea, not for the first time, allowed Yaya Toure to run at them.
The Ivorian, the dominant figure in midfield for City, played a precise pass to Aguero's feet, he passed to Nasri and the Frenchman appeared to try to pass back, but the ball rebounded off Chelsea's Cesar Azpilicueta, so Nasri slotted it into the net.
City rammed home their supremacy two minutes after the break when Aguero metGareth Barry's cross with a looping header that went in off the post.
Chelsea, FA Cup winners in four of the past six seasons, got a lifeline when Senegalese forward Ba turned for a long ball and scored with an overhead kick off the post.
It was the first goal City have conceded in the competition.
Chelsea pressed strongly in the closing stages but now only have the Europa League for a chance of silverware this season.