Goals from playmaker David Silva and striker Sergio Aguero gave Manchester City a deserved victory over Middlesbrough and earned a place in the FA Cup semi-finals.
The Spanish midfielder netted just three minutes in from six yards out after defender Pablo Zabaleta had time and space to cross low from the right.
Aitor Karanka side goalkeeper Brad Guzan produced a number of fine saves to deny Silva, winger Leroy Sane and deflect an Aguero shot on the post.
But the Argentine striker finally made the result safe for the City when he converted from Sane's low cross to earn his side a Wembley semi-final.
Pep Gaurdiola's side have reached the last four of the FA Cup for the first time in four years as Guardiola aims to victory some silverware in his first season in English League.