Arsenal were on the floor after losing 3-1 to Monaco last month but the Londoners have rebuilt confidence enough to believe they can overturn their Champions League deficit in today’s return match.

Since being beaten in the last-16 first leg at The Emirates, the Gunners have bounced back by knocking Manchester United out of the FA Cup and by overcoming West Ham United, Queens Park Rangers and Everton in the Premier League.

“I think we have pulled ourselves together,” midfielder Francis Coquelin said.

“There are quite a lot of things to change after you lose 3-1 at home but we’ve done that in recent games.

“We haven’t conceded many goals and we’ve been scoring goals as well. We haven’t lost a game since Monaco and confidence is high.”

France striker Olivier Giroud, who had a terrible game in the first leg, also seems to be back to his best and scored the opening goal in Saturday’s 3-0 win over West Ham.

Like Arsenal, Monaco’s self-belief is also high after they brushed Bastia aside 3-0 in Ligue 1 on Friday thanks to an Anthony Martial double.

Martial started after coach Leonardo Jardim rested Dimitar Berbatov and the 19-year-old forward produced a sterling performance as Monaco remained fourth in the table.

Only once this season have the principality club conceded three goals or more, a 4-1 defeat at Bordeaux in August.

In tonight’s other match, Atletico Madrid will need to put an end to a recent goal drought if they are to have any chance of overturning a 1-0 deficit at home to Bayer Leverkusen.

La Liga stalemate

Atletico, last season’s beaten finalists, have only scored once in their last four outings in all competitions and slipped nine points behind La Liga leaders Barcelona after Saturday’s 0-0 stalemate at Espanyol.

Their chances of beating Espanyol were hampered by the dismissal of centre-back Miranda shortly before half-time.

It was Atletico’s third red card in their last five matches, which prompted coach Diego Simeone to replace forward Fernando Torres with defender Jose Gimenez to provide cover at the back.

Forwards Mario Mandzukic, Antoine Griezmann and Torres have been off colour in recent weeks and Atletico have failed to score in three consecutive away games in La Liga for the first time since Simeone took over at the end of 2011.

Bayer Leverkusen, by contrast, have rattled in 11 goals without reply in winning their last five games in all competitions, including Friday’s 4-0 drubbing of VfB Stuttgart.

Looking to reach the quarter-finals of Europe’s elite club competition for a seventh time, Atletico have won 20 of their last 22 European matches at the Calderon.

Their only defeat was a 2-0 reverse to Rubin Kazan in the Europa League last 32 in February 2013.

Round of 16 – second legs