What David Raya did after error and Arsenal's two big worries for Man City clash

ARSENAL 0-0 SPORTING (1-0): The Gunners lumbered their way to a second successive Champions League semi-final for the first time in their entire history following a goalless draw at the Emirates Stadium

Arsenal trudged past Sporting CP to set up a crunch Champions League semi-final showdown with Atletico Madrid.

Having thrashed Diego Simeone's men 4-0 during the group stages in October, Mikel Arteta's side will fancy their chances of booking a ticket to Budapest.

Alarmingly, Arsenal have now won only one of their past five matches in all competitions ahead of Sunday's blockbuster trip to Manchester City.

Here are five talking points from the Emirates Stadium.

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Rice worry for Sunday

It looked as though Declan Rice was playing through the pain barrier tonight. Arteta said on Tuesday that he was facing a late fitness test and since then, there has been speculation suggesting the England international was ill.

On Saturday against Bournemouth, he appeared to pick up an injury issue after landing awkwardly around the 65th minute but soldiered on as captain of the side in the absence of Martin Odegaard.

Rice was able to start against Sporting but still didn't look entirely fit and that wasn't helped by a poor late challenge from Morten Hjulmand, who caught the England midfielder's ankle. Again, the England international was moving around gingerly and took a little while to get back into the flow of the game.

The concern ahead of Sunday's trip to Manchester City is that Rice is not fully fit and therefore not able to perform to the peak of his powers.

It feels like he's in desperate need of rest but he knows he cannot afford to because the likes of Odegaard, Bukayo Saka and Jurrien Timber are not available.

He will be key at the Etihad Stadium and right now, he does not look out of place as Arsenal's captain.

Shaky William Saliba

It's not often you can critique William Saliba but he struggled during the first half and looked nervous in possession.

First he hacked a long pass straight to a Sporting player before getting his feet in a tangle near Arteta's technical area as he moved the ball on to Martin Zubimendi.

Saliba also got caught out aerially and was then penalised for committing a foul as he tugged back Luis Suarez.

Suarez's crafty movement was a problem for the commanding Frenchman and Arsenal had to ride their luck defensively at times.

What David Raya did after mistake and why it can't happen vs Man City

David Raya had two hairy moments on Saturday against Bournemouth when he misplaced simple passes to put Arsenal under huge pressure.

You would have thought the Spaniard, who is still fighting to become Spain's No.1 for the World Cup, would have learned his lesson by now but apparently not after fluffing a routine pass which caused mayhem.

Thankfully for Arsenal, Sporting failed to punish his sloppiness but that didn't stop the home bench from raising their fury with Raya.

Before they'd even said a word, he raised his hand in their direction, anticipating the anger which followed.

Gabriel Heinze in particular blasted Raya and again the ex-Brentford shot-stopper made a point of admitting he was wrong.

In the second half, he also rushed a throw which scuttled off the side of the pitch and that annoyed the Arsenal fans, who audibly groaned.

Last week, Raya was the hero in Lisbon but his distribution has been called into question for two games running now. He can't afford to make any mistakes against City as they could have huge ramifications.

Sturdy Mosquera

Outside of a needless push of Maxi Araujo that the Spaniard got away with, Cristhian Mosquera did a fine job at right-back in place of Ben White.

It's a role he's played on several occasions this season but naturally, he is a central defender and is much more comfortable there. Nonetheless, Mosquera's strong display once again points towards him being a £13million steal from Valencia last summer.

He is not blessed with technical ability but he does the basics very well, is strong, robust, can head the ball and knows where and when to pop the ball off.

White has looked knackered of late as he's taken on a big workload with Timber out but Mosquera looks more than ready to help and challenge his team-mate.

Madueke injury fears eased

Noni Madueke plays like the right-sided Gabriel Martinelli. The England international seems set on running down blind alleys and takes too many touches.

He's still quite raw which is surprising for a player of his experience but you get the sense is he starting to frustrate supporters with his dribbling.

He was forced off in the second half with a knee problem but there shouldn't be too much concern ahead of the trip to Manchester City as Madueke was laughing and joking as he hobbled about following the full-time.

Madueke did not look overly worried when he was chatting with Saka and Timber on the sidelines, either. The forward didn't head down the tunnel following treatment which again, can only be a good sign.