Wenger led the "Gunners" through a turbulent start with player injuries and poor form placing the side as low as eighth in December.

In the second half of the season, Arsenal found good form, challenging for the Premier League title with an eight game winning streak in the latter stages.

[3] Ahead of the new season, the club announced that playing kits would be manufactured by German sportswear company Puma, after a 20-year association with Nike came to an end.

[7] The list included loanees Kim Källström and Emiliano Viviano, along with players who signed pre-contract agreements: Łukasz Fabiański (Swansea City),[8] Bacary Sagna (Manchester City),[9] Zak Ansah (Charlton Athletic),[10] Zachari Fagan (Welling United),[11] and Chuks Aneke (Zulte Waregem).

[15] The club received a £15 million fee from Barcelona for the transfer of Belgian defender Thomas Vermaelen, who left after making 110 Premier League appearances for Arsenal.

[16] It was also reported that Arsenal received benefits for selling a selection of contractual rights including clauses with Carlos Vela at Real Sociedad,[17] and Cesc Fàbregas at Chelsea.

[20] A week later, French defender Mathieu Debuchy joined the club for an undisclosed fee; he was seen as a direct replacement for the departed Sagna.

[27] In preparation for their season, Arsenal played Conference South side Boreham Wood at their home stadium Meadow Park.

In Arsenal's first competitive game of the season, the club defeated Manchester City 3–0 with goals from Santi Cazorla, Aaron Ramsey and Giroud.

[34] Match details Arsenal began their Premier League season at the Emirates Stadium against Crystal Palace on 16 August 2014.

The visitors took the lead through Brede Hangeland's header from a corner in the first half, but Arsenal replied with a Laurent Koscielny equaliser and a late stoppage time winner from Ramsey.

[41] Arsenal's misfortune continued when they lost 2–0 against rivals Chelsea at Stamford Bridge, with the "Blue's" Eden Hazard and Diego Costa on the scoresheet.

[43] With the hope of finding good form, the club played Steve Bruce's Hull City after the international break, where the "Gunners" drew 2–2 with Sánchez and Welbeck netting the goals for Arsenal at the Emirates Stadium.

[44] Arsenal won their final match in October when they defeated Sunderland at the Stadium of Light, capitalising off player mistakes, and the club finished the month in fifth place on the Premier League table.

During the game against Stoke, new signing Chambers was sent off after receiving a second yellow card and Wenger was again critical of his side, calling Arsenal "soft".

[53] On Boxing Day, Arsenal defeated Queens Park Rangers 2–1,[54] and later dispatched West Ham United on 28 December to end 2014 with a victory.

[61] In the game against Stoke, Sánchez was involved in all three goals, assisting Koscielny's header and scoring the other two; the match also saw Özil appear as a substitute, having returned from injury.

[62] The club's good form was interrupted when they lost 2–1 to Tottenham Hotspur at White Hart Lane with Harry Kane scoring both goals for Spurs.

[63] In Arsenal's final two matches during the month, they defeated Leicester City at the Emirates Stadium,[64] and dispatched Crystal Palace 2–1 at Selhurst Park.

[66] Three days later, Arsenal travelled to Loftus Road to defeat Queens Park Rangers 2–1, with Sánchez ending a run of seven games without scoring.

[79] Match detailsArsenal entered the FA Cup as title holders, following their victory over Hull City in the previous edition's final.

[82] Their opening tie in January 2015 was a home match against Hull City, a repeat of the previous final; the "Gunners" won 2–0 with a corner set-piece headed in by Per Mertesacker along with a sharp turn and finish from Sánchez.

[84] In the following month, Arsenal defeated Middlesbrough 2–0 at the Emirates Stadium with both goals scored by Giroud; Gabriel Paulista also made his debut for the club during the match.

An early goal from Arsenal's Nacho Monreal was cancelled out by Rooney's flying header from Angel Di Maria's cross, the Argentine was later sent off following Welbeck's winner against his former club.

[94] In Arsenal's first group stage match in September away against Borussia Dortmund, the German side won 2–0 with goals from Pierre-Emerick Aubameyang and Ciro Immobile; academy graduate Bellerín also made his first start for the club.

[98] Arsenal qualified for the knockout phase after they defeated Borussia Dortmund 2–0 at home with goals from Sanogo and Sánchez;[99] they wrapped up their group stage campaign finishing second after a comfortable 4–1 away win over Galatasaray in December.

[108] Arsenal travelled to the Stade Louis II the following month with the hope of turning the tie around with a two-goal deficit; despite winning the match with an improved performance, the "Gunners" left the competition by the away goals rule having drawn 3–3 on aggregate.