Arsenal moved back into the Barclays Premier League's top four as they came from behind to beat West Ham United 3-1 on Tuesday.
The hosts were not at their fluid best at the Emirates Stadium but did enough to record a first League victory since mid-March thanks to Lukas Podolski and Olivier Giroud.
West Ham have now lost their last four matches against Arsenal, despite taking a lead in each, Matt Jarvis striking first here with just his second goal of the campaign in the 40th minute.
However, Arsenal were only behind for four minutes as Podolski converted Santi Cazorla's throughball, and Giroud put them ahead in the 55th minute with a composed finish.Podolski then sealed the win with a second goal 12 minutes from time.
Arsenal climb above Everton in the table by a point, though Roberto Martinez's side have a match in hand.
The visitors, who remain seven points clear of the relegation zone, began the game with an urgency and pace as they pegged their hosts back in the opening 20 minutes.
Mohamed Diame had two chances to opening the scoring but saw his first effort blocked, and he hit a second over the crossbar from Andy Carroll's neat cut-back.
Arsenal finally burst into life 30 minutes in as Cazorla threaded a pass through to Giroud in the penalty area, but France international's flick was easily saved by Adrian.
He was made to rue that finish as West Ham took the lead five minutes before the break. Antonio Nocerino raced away from Kim Kallstrom, making his first Arsenal start, with Jarvis following in with a brave header after Wojciech Szczesny saved the Italian's shot.
West Ham's goal was the catalyst to set Arsenal into life and they were on level terms only four minutes later as Cazorla latched onto a clearance from Stewart Downing and found Podolski, who slotted home.
Ten minutes into the second half Giroud made up for his earlier miss to move Arsenal in front for the first time in the game. Thomas Vermaelen delivered a lofted pass into the penalty area that the 27-year-old controlled superbly before firing first-time under Adrian.
Podolski and Cazorla both went close to extending the hosts' lead just after the hour, but Adrian saved well from the German and Cazorla's 20-yard strike was just wide of goal.
The points were sealed in the 78th minute as Podolski doubled his tally, the forward lashing his sixth league goal of the season high into the roof of the net after substitute Aaron Ramsey's headed pass.
Arsenal manager Arsene Wenger: "I think we built the victory tonight through consistency in our game. The first half it was difficult but the vital thing was to come back right before half time. In the second half we controlled the game. Overall it is a hard fought win but a very, very important one, and a pleasant one because after Saturday's game we had to dig deep.
"It was two compulsory wins, we did it, let's continue like that. Everybody's under pressure to do well, and the best way to deal with that pressure is to focus on your own performance."
West Ham United manager Sam Allardyce: "We shot ourselves in the foot with the first two goals and I think that when you do that it's always going to be difficult when you fall behind at the Emirates. When you do so much to get the first goal, not getting in [to half time] at 1-0 was a big disappointment.
"The first 12-15 minutes of the second half we were looking comfortable, but the second goal sickened me because the performance meant nothing after that. In the end you try and fight back, but we didn't get enough opportunities, we didn't create enough to get to 2-2. It's disappointing that down to our basic errors Arsenal have taken advantage and scored two goals, and all our hard work has been wasted tonight."
|20 Apr 2014||v Hull (A)|
|28 Apr 2014||v Newcastle (H)|
|04 May 2014||v West Brom (H)|
|11 May 2014||v Norwich (A)|
|13 Sep 2014||v Arsenal (H)|
|20 Sep 2014||v Aston Villa (A)|