Sergio Aguero turned super-sub to deliver a two-goal salvo and so cap a stunning Manchester City fightback to clinch a dramatic 3-2 FA Cup quarter-final win at Swansea.

The Blues suffered a tough first 45 minutes at the Liberty Stadium with driving rain and a swirling wind buffeting the ground.

Swansea took a 20th minute lead from the penalty spot after Fabian Delph brought down Connor Roberts, Matt Grimes converting.

The hosts then doubled their advantage eight minutes later after a fine flowing move upfield, former Blue Bersant Celina applying the finishing touch.

READ: Swansea 2-3 Man City | Match Report

WATCH: Inside City Episode 333

But the second half introduction of Aguero sparked a sensational fightback from Pep Guardiola’s side.

First Bernardo Silva struck a superb shot to narrow the deficit and so give the Blues hope and impetus.

Then after Raheem Sterling was tripped in the box, Sergio levelled from the spot via a rebound off the Swansea keeper.

And with two minutes left, Kun sealed our dramatic comeback and semi-final ticket with a deft close-range header to spark scenes of jubilation amongst his team-mates and travelling fans.

SERGE IN THE HOOD: Kun arrives at the Liberty Stadium kitted out to ward off the South Wales downpour

CLOSE CALL: Leroy Sane unleashes a left-foot shot on the Swansea goal

BLOW: Matt Grimes converts the spot-kick to give Swansea the lead

CHALLENGE: Pep Guardiola and the Blues bench look on in dismay after Swansea's second goal

DISAPPOINTMENT: The Blues' expressions say it all after a tough first half

CENTRE POINT: Riyad Mahrez looks to get City on the front-foot

SKIP TO IT: David Silva evades the challenge of Swansea's Mike van der Hoorn

FRUSTRATION: Leroy Sane can't believes it after another chance goes begging

LEADING MAN: Pep Guardiola urges the Blues on

BACK IN THE GAME: Bernardo celebrates after his stunning strike narrowed the deficit

GAME CHANGER: Sergio Aguero comes on for Riyad Mahrez

SPOT ON: Sergio levels it with his penalty as the Blues step up our second half comeback

HIGH DRAMA: Kun's penalty goes in off the Swansea keeper's foot

GET IN: Sergio celebrates after levelling from the spot

COMEBACK KING: Sergio Aguero stoops to head home City's winner to cap our amazing fightback

WHAT A FEELING: Oleks Zinchenko and the City players mob Sergio after his winner

UP FOR THE CUP: Bernardo embraces Sergio after his winning goal