Alex Howell
BBC football news reporter

Although Arsenal dropped away in the race for the Premier League title in recent weeks, their form throughout the season has largely been good.

When playing away from home in the league they have won eight games, drawn seven and lost two.

Those two losses came in back-to-back away games against Bournemouth and Newcastle in October and November respectively.

The Gunners have lost only once away from home in the Champions League this season too, losing 1-0 to fellow semi-finalists Inter Milan.

Alex Howell
BBC football news reporter

Image source, Getty Images

Every manager wants their best players available but there is a question mark for Luis Enrique about the fitness of match-winner Ousmane Dembele.

He limped off in the 70th minute and was replaced by Bradley Barcola but trained earlier today after seemingly shrugging off a hamstring issue.

Dembele has scored 32 goals and registered 12 assists in all competitions this season and is one of their standout players.

PSG still have an array of attacking talent, though, and have the excellent Barcola, striker Goncalo Ramos - who hit the crossbar late in the first leg - Lee Kang-in and youngster Warren Zaire-Emery to call on if Dembele is unable to play the full 90 minutes.

We'll be bringing you quotes from PSG head coach Luis Enrique in a short while on Dembele's fitness...

Alex Howell
BBC football news reporter

PSG have lost to Strasbourg and Nice in their two most recent Ligue 1 games.

Aston Villa beat them 3-2 in their quarter-final second leg despite losing on aggregate, Liverpool beat PSG 1-0 in the last 16 first leg and Atletico Madrid were also victorious in the group stage at the Parc des Princes.

Of course, the pressure, teams and circumstances are different, but Mikel Arteta will have examples to study when setting out his game plan.

Arsenal have also picked up impressive wins in the competition themselves away from home, putting five past Sporting, seven past PSV Eindhoven and beating Real Madrid 2-1 at the Bernabeu.

And let's not forget that Arsenal beat PSG 2-0 in the league stage of the competition in October.

Alex Howell
BBC football news reporter

Image source, Getty Images

One of the biggest challenges for Mikel Arteta to deal with in the first leg was the absence of Thomas Partey in midfield.

His suspension for picking up a cheap yellow card in the victory over Real Madrid in the Bernabeu meant Arteta had to rejig his midfield.

With the Ghanaian returning, it will allow Declan Rice to move back into the number eight role that he has excelled in in recent weeks and Partey will give solidity and structure to the base of the Arsenal midfield.

Rice moving back into a more advanced role may also help captain Martin Odegaard, who had a quiet first leg.

Alex Howell
BBC football news reporter

Even though Arsenal were pinned back for what felt like large periods of the first half of the first leg, they grew into the game.

Even though PSG had two good chances late on through Bradley Barcola and Goncalo Ramos to make it 2-0, Arsenal had chances of their own.

Gabriel Martinelli had a good opportunity inside the area saved by Gianluigi Donnarumma before half-time and Leandro Trossard forced the PSG goalkeeper into an excellent stop after the break.

Arsenal had a higher expected goal ratio (1.65), than PSG (1.14), and more shots on target (5 v 4), while Donnarumma had to make five saves compared to David Raya's four.

They also had a goal disallowed after Merino headed in Declan Rice's free-kick in the second half, and those chances show that Arsenal could grab the goal they need to level the tie.

Alex Howell
BBC football news reporter

Arsenal might have lost the semi-final first-leg tie to PSG 1-0, but there were signs in that game that it remains in the balance.

Manager Mikel Arteta was quick to make clear in his post-match news conference that it is only "half-time" before the second leg in Paris.

Arsenal could turn the tie around and reach their first Champions League final since 2006.

Here are five reasons why Arsenal can still be in the final to be played at Allianz Arena in Munich on 31 May.

Arsenal

These are the key things to take away from Arsenal's training session:

• Riccardo Calafiori returned to training after a long injury lay-off
• Jurrien Timber trained after missing the Bournemouth defeat
• Gunners captain Martin Odegaard, who picked up a knock in that game, also trained
• Thomas Partey took part after missing the semi-final first leg through suspension

The Arsenal squad will fly to Paris later today, with Mikel Arteta scheduled to speak to media in the pre-match news conference this evening.

Tell us how you really feel Clyde...

Arsenal

The live coverage of Arsenal's training session has now finished.

We left the players as they formed a circle, holding hands as they tried to pass the ball to team-mates while being harried by a chosen few in the middle.

Like a rondo-ring o'roses hybrid.

Gunners boss Mikel Arteta also had the speakers out, pumping up the volume and intensity with background music.

He will definitely need some 'heavy metal' football from his players to get the job done in Paris tomorrow.

Image source, Getty Images

Arsenal

Riccardo Calafiori's return will be welcome news for Arsenal as they enter a crucial juncture in their season.

The Italy defender has featured seven times in the Champions League this season and scored and assisted in the 7-1 win against PSV Eindhoven in the last-16 first leg.

The left-back has also made 17 appearances in the Premier League, with two goals and an assist.

However, it is unlikely that Mikel Arteta will disturb his settled back four of Jurrien Timber, William Saliba, Jakub Kiwior and Myles Lewis-Skelly before a must-win game.

Image source, Getty Images

Arsenal

Mikel Arteta ruled Riccardo Calafiori out of Arsenal's Premier League game against Bournemouth but was non-committal when asked about the Italy defender's availability for Wednesday's game in Paris.

He said: "Let's see in the next few days how a few of them react."

Arsenal

Arsenal have been without defender Riccardo Calafiori since a 1-0 win against Chelsea in March.

The Italian suffered a knee injury when representing his country in the Nations League quarter-final defeat to Germany during the March international break.

But we have just seen him return to training ahead of the semi-final second leg.

He was expected to return for the first leg in London but Mikel Arteta will now hope to have him in the squad for the crucial return leg.

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Arsenal fans will be relieved to see their captain Martin Odegaard training after picking up a slight knock in the defeat by Bournemouth.

In more good news, he is joined by Jurrien Timber, who also missed the game against the Cherries.

Arsenal

Bukayo Saka, William Saliba and Gabriel Martinelli are also among those making their way out for training.

Arsenal will need Saka to be at the top of his game if they are to overturn the 1-0 first-leg deficit.

Arsenal

We have now got Arsenal's outfield players streaming in for training.

Thomas Partey, who returns from a one-game suspension, and Ben White are the first to be out.

They are followed by youngsters Myles Lewis-Skelly and Ethan Nwaneri, among others.

Image source, Getty Images

Mikel Arteta will be happy to see Thomas Partey back available for the second leg against Paris St-Germain.

The midfielder had to sit out the first leg after picking up a yellow card in the win against Real Madrid at Santiago Bernabeu.

Captain Martin Odegaard picked up a slight knock against Bournemouth while Jurrien Timber also missed the defeat to the Cherries, so both could be assessed before the Champions League tie.

Riccardo Calafiori, Jorginho, Gabriel Jesus, Kai Havertz, Gabriel Magalhaes and Takehiro Tomiyasu are among the Arsenal players who are missing out due to long-term injuries.