Aaron Ramsey believes Arsenal's disappointing defeat at Everton on Sunday can be put down to vulnerability on the counter-attack.
Arsenal were second-best at Goodison Park as Everton stormed to a 3-0 triumph and boosted their chances of earning fourth place in the Premier League.
Roberto Martinez's men are now just a point behind Arsenal in the battle to secure UEFA Champions League football and the Merseyside team also boast a game in hand.
Ramsey has called on his club to bounce back in strong fashion, starting with next weekend's FA Cup semi-final with Wigan Athletic, and remains confident of claiming a top-four finish.
"We are really disappointed," he told Arsenal's official website. "It was a massive game - there was a lot riding on it but we conceded some sloppy goals. We were quite vulnerable on the counter-attack and they exploited the opportunities.
"I thought we started quite positively. We had a few attempts and got into dangerous positions, but you can't concede goals like that.
"We have to pick ourselves back up now. We have still got a lot of points to play for. We are in the semi-final of the FA Cup so we have got to put things right.
"We have to put a strong run-in together now. We have five games left and we will aim to win them all to give us the best opportunity to finish fourth or higher.
"I think Everton still have a few difficult games but then again every game is difficult in this league. So many teams can upset each other so we will have to be aware of that, concentrate on ourselves and just play for the remaining 15 points."
Ramsey made his first appearance since Boxing Day against Everton, having endured a lengthy lay-off due to a thigh injury.
The Wales international is thrilled to be back in action, and is hopeful of helping Arsenal achieve their remaining targets this term.
He added: "It was very frustrating for me to be out for three months of the season when things were looking so good.
"These things happen in football and I am just glad to be back out there now. Hopefully I can show what I can do, help this team achieve Champions League football again and hopefully have a medal at the end of the year."
|Coach: Roberto Martínez|
for L. Osman 10'
for S. Naismith 81'
for R. Lukaku 86'
|Conte wants fairytale finish for Terry|
|Iniesta: Barcelona haven´t lost faith in Luis Enrique|
|Mourinho knew Ibrahimovic would be ´massive´ for United|
|Ter Stegen doesn´t understand Barcelona fans whistling|
|´He is doing a fantastic job´ – Bartomeu backs Luis Enrique|
|Guardiola slams ´unacceptable´ Wenger treatment|
|Spalletti: Roma goal machine Dzeko now believes he´s world class|
|Emery refuses to blame referee after PSG are held|
|Montella dedicates AC Milan win to Berlusconi|
|The players don´t need whistles – Luis Enrique hits out at fans|
|Brazilian game called off due to TV dispute|
|Chelsea are already Premier League champions, says United boss Mourinho|
|Barcelona 2 Leganes 1: Late Messi penalty spares Ter Stegen´s blushes|
|Paris Saint-Germain 0 Toulouse 0: Champions spill valuable points|
|AC Milan 2 Fiorentina 1: Deulofeu strike keeps European hopes alive|
|Attitude got Man United through - Mourinho|
|Roma 4 Torino 1: Dzeko strikes again|
|Lincoln face Sutton or Arsenal in FA Cup quarter-finals, Chelsea host Man United|
|Neuer slams Jarstein after brawl|
|Blackburn Rovers 1 Manchester United 2: Substitutes Pogba and Ibrahimovic combine for late winner|
|Inter insist Perisic going nowhere, rule out move for Verratti|
|Borussia Monchengladbach 1 RB Leipzig 2: Forsberg and Werner reignite title bid|
|Training-ground meetings paid dividends - Pochettino|
|I´m trying to find a team - Berbatov open to offers|
|Inspired by Zeman´s return, Pescara hammer Genoa 5-0|
|Gabigol wants to make history after Inter breakthrough|
|Chievo 1 Napoli 3: Sarri´s men bounce back from Champions League disappoitment|
|Alfonso Perez calls for Pique to quit international football over political beliefs|
|Benatia refuses to question Allegri´s decisions|
|Fulham 0 Tottenham 3: Kane hat-trick fires Spurs into quarter-finals|
|Oblak return boosts Atletico ahead of Leverkusen trip|
|Gabigol and Inter ready to feast on success after late winner|
|Bologna 0 Inter 1: Gabigol gets belated lift-off in Serie A|
|Still no Mascherano or Arda for Barcelona|
|Bielsa appointed Lille boss from next season|
|Janssen determined to make the grade at Tottenham|
|Stones missing Kompany influence at Manchester City - Ferdinand|
|Central Coast Mariners 0 Melbourne Victory 3: Muscat´s men cruise to win|
|David Villa sent off after video replay|
|Favre not blaming Balotelli for latest red card|
|´It is my future at stake´ – Isco could leave Real Madrid|
|Smalling desperate for Ibrahimovic stay|
|´He will be here for sure´ - Mourinho rules out Shaw exit|
|Wenger not ready for retirement, wants Arsenal stay|
|Pogba will soon look cheap, claims Manchester United boss Mourinho|
|Casilla defends under-fire Navas|
|Isco ´happy and committed´ at Real Madrid – Zidane|
|Middle finger gesture was because I was spat at - Ancelotti|
|Leicester must learn from Millwall´s ´gladiators´ – Ranieri|
|Sevilla 2 Eibar 0: Sampaoli´s side move up to second|
|Lorient 0 Nice 1: Balotelli sent off as visitors go second|
|Too early to talk about Chelsea double – Conte|
|Conte delighted with Chelsea´s fringe players|
|Foreign players don´t expect cup upsets – Terry|
|Bale eyes top form and titles after scoring on Real Madrid comeback|
|Watzke received death threats after Leipzig match|
|Wolves 0 Chelsea 2: Pedro and Costa send Conte´s men through|
|Zidane reveals what he whispered to Bale before comeback goal|
|Dardai hits out at ´Bayern bonus´ after late equaliser|
|Ancelotti adamant Bayern deserved controversial equaliser|
|Ronaldo was not getting anxious, insists Zidane|
|Kompany injury not serious, says Manchester City boss Guardiola|
|Kompany injury not serious, says Manchester City boss Guardiola|
|Ranieri: 10-man Millwall were better than us|
|Piszczek represents everything Borussia Dortmund stand for - Tuchel|
|Championship Review: Brighton back top, Wednesday capitalise on Norwich slip|
|´Vamosss!!!´ - Bale ecstatic after scoring on Real Madrid return|
|Favourites tag weighed heavily on Burnley in Lincoln loss, says Dyche|
|Simeone delighted with Gameiro´s ruthless cameo|
|Millwall 1 Leicester City 0: Cummings wins it for 10-man Lions|
|Middlesbrough 3 Oxford United 2: Stuani rescues Boro after minute of mayhem|
|Real Madrid 2 Espanyol 0: Bale scores on comeback as hosts extend lead|
|Huddersfield Town 0 Manchester City 0: No pep from Guardiola´s men in cup stalemate|
|Hertha Berlin 1 Bayern Munich 1: Lewandowski rescues champions with last kick|
|Barton denies trying to force Rhead red and accuses Lincoln of play-acting|
|Borussia Dortmund 3 Wolfsburg 0: Piszczek stars with Yellow Wall absent|
|Cowley brothers marvel at Lincoln´s FA Cup heroics|
|Violence in the stands mars Tigres victory|
|Raggett ´lost for words´ after sending Lincoln into FA Cup quarter-finals|
|Gameiro dedicates hat-trick to grandmother|
|Burnley 0 Lincoln City 1: Raggett puts non-league heroes in FA Cup dreamland|
|Gameiro hits fastest LaLiga hat-trick in 22 years|
|Big-money signing Krychowiak to play with PSG reserves|
|Sporting Gijon 1 Atletico Madrid 4: Stunning Gameiro hat-trick snatches victory|
|A-League Review: Derby defeat for Sydney, Melbourne City cruise to victory|
|Barcelona results ´irrelevant´ to Luis Enrique´s future|
|Montella backs Donnarumma for Ballon d´Or|
|Bournemouth congratulate Arter on birth of daughter|
|Loftus-Cheek confident his Chelsea chance will come|
|Rashford still part of Mourinho´s plans - Brown|
|Klopp confirms Liverpool transfer plans are already underway|
|No chance of Jesus joining Inter, says agent|
|Dani Alves: If anyone can come back, it´s the Barcelona machines|
|Purslow stepping down from Chelsea role|
|Redknapp: Tottenham will win Premier League within four years|
|Buffon one of the greatest of all time - Casillas|
|Winning over happiness for Chelsea´s Conte|
|Manchester City can still win Premier League - Gundogan|
|Ferdinand backs Keane to re-sign with United like Pogba|
|Pochettino: Janssen must do more at Tottenham|
|Marotta: Juve signing Verratti unrealistic|
|Guardiola: I will never return to Barcelona|
|Allegri jokes ´how is my English?´ as Arsenal rumours intensify|
|We did not play well – Juventus hero Dybala fires Porto warning|