Danny Welbeck’s scrambled first-half winner took us into the last four of the Carabao Cup.
The England international climbed to meet Mathieu Debuchy’s header back across goal after the Frenchman was picked out by Francis Coquelin’s lofted pass.
Welbeck got his chest to the ball and then prodded it past Joe Hart from close range for his first goal in this competition since October 2009.
It was a scrappy goal but a deserved one.
Theo Walcott might have given us the lead moments before when his diving header flew wide, and we controlled the game for long spells without giving Hart too much to do.
Joe Willock started in midfield and showed plenty of neat touches, while Calum Chambers and Rob Holding were rock solid at the back.
There was one regret - Olivier Giroud and Francis Coquelin both limped off in the second half.
But we’re 180 minutes from Wembley.
HOW IT HAPPENED
See how the match unfolded and get some standout stats with our play-by-play commentary
WHAT IT MEANS
This win takes us into a two-legged semi-final in January. The draw for the last four takes place on Wednesday.
We’re back in Premier League action on Friday night when Liverpool visit Emirates Stadium for our last home game of 2017.
Then we round off the year with back-to-back away trips - to Crystal Palace and West Bromwich Albion.
Theo Walcott captained the side on Tuesday and he was at the centre of most of our best moments in the first half. These were his highlights:
17 secs - A slick move involving Debuchy and Giroud sends Walcott clear down the right, but his lofted cross is claimed by Hart
20 mins - Walcott dashes inside from the right flank to meet a Giroud knockdown, but this time Collins clears
22 mins - Walcott shows his tenacity, charging back to go shoulder to shoulder with Masuaku and winning the ball back
28 mins - Walcott drops a shoulder to make space for a cross but it’s headed away
39 mins - A glorious cross from Kolasinac finds Walcott in space inside the box. He opts for a diving header but powers it wide of the far post
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