BELGRADE (AFP) - Arsenal manager Arsene Wenger, who admitted he didn't recognise the team which slumped to defeat to West Brom at the weekend, faces a crucial week which could define his side's season.
The Gunners' Premier League aspirations will be under the microscope at Stamford Bridge on Sunday when they take on Chelsea.
But Tuesday sees a test of their backbone as well as their style in a tricky Champions League trip to Partizan Belgrade.
The Serbian side, playing in Europe's elite event for the first time in seven years, have never won a home tie in the competition, but will have taken heart from the way that unheralded West Brom picked their way through a sleepy Arsenal backline in the 3-2 win on Saturday.
Wenger has little time to solve the mystery of that Emirates fiasco.
"I didn't recognise my team and we have to sit down together to analyse what happened," said the coach.
"Something was not right. It's unusual to see a team as flat as we were."
Goalkeeper Manuel Almunia was widely condemned for another poor performance and Wenger, who courted Fulham's Australian goalkeeper Mark Schwarzer in the summer, is believed to be lining up a bid for Liverpool's Pepe Reina once the transfer window reopens.
But that is not until January.
Almunia has been ruled out of Tuesday's game with an elbow injury and will be replaced by Lukasz Fabianski.
Wenger insisted Monday he would have played Almunia if the keeper had been fit.
"We have Manual Almunia out," Wenger said. "He has a problem with his elbow. He caught it when he made the penalty on Saturday.
The French boss added: "(The goalkeeper) is always the easy target, the easy scapegoat.
"But we win together and we lose together even if people think he made a mistake on the second goal."
Arsenal won their opening Champions League game 6-0 against Braga on the same night that Partizan lost 1-0 at Shakhtar Donetsk.
But the Gunners' away record in Europe doesn't make comfortable reading for Wenger with his team having lost their last three away games - 4-1 at Barcelona in last season's quarter-final, 2-1 at Porto in the round of 16 and 1-0 at Olympiacos in the the group stages.
They have only won two of their last 10 away matches in the competition.
When Partizan last appeared in the Champions League in 2003/2004, they failed to win at home in five attempts, including two qualifying rounds.
But a defeat to Newcastle was their only loss, the other four games all ending in draws.
This season, they saw off FC Pyunik and HJK Helsinki in the qualifying rounds before defeating Anderlecht 3-2 in a penalty shoot-out win after two play-off games each finished 2-2.
Brazilian striker Cleo scored three goals over the tie, including two in the away leg.
Experienced midfielder Sasa Ilic will be expected to dominate proceedings in midfield for the Serbian champions.
|Premier League Preview: Swansea City v West Brom|
|FA opts not to appeal Anelka ban|
|Premier League Preview: Stoke City v West Ham|
|Bundesliga Preview: Bayern Munich v Bayer Leverkusen|
|Benteke urges cup-final approach|
|Premier League Preview: Everton v Cardiff City|
|Premier League Preview: Southampton v Norwich City|
|Premier League Preview: Fulham v Newcastle United|
|Hughton ´disappointed´ to be only black manager|
|Lewandowski close to Dortmund comeback|
|Bellamy claims improvement under Solskjaer|
|Unbeaten run is not a priority - Alaba|
|Remy, Debuchy face injury lay-offs|
|Every game a cup final, says Zaccardo|
|Genoa can upset Juventus, says Antonelli|
|Pardew ´relieved´ not to lose job|
|League One Preview: Slade ready for Brentford test, Wolves face Shrewsbury|
|La Liga Preview: Atletico Madrid v Espanyol|
|Serie A Preview: Milan v Parma|
|Bundesliga Preview: Borussia Dortmund v Borussia Monchengladbach|
|Premier League Preview: Hull City v Manchester City|
|Serie A Preview: Bottom four go head-to-head, Chievo meet slumping Fiorentina|
|CSL Preview: Shenxin face second derby, Evergrande host Harbin|
|Serie A Preview: Verona v Inter|
|Championship Preview: Millwall face rivals Charlton, play-off battle intensifies|
|Premier League Preview: Sunderland v Crystal Palace|
|Gardner, Brown set for Sunderland returns|
|Gardner, Brown set for Sunderland returns|
|League Two Preview: York eye play-off push, Rochdale ready for derby|
|Allardyce aiming to pick up quick points|
|Gunter signs contract extension at Freiburg|
|Busquets: Title will be decided at Bernabeu|
|Hoeness receives three-and-a-half-year sentence|
|Ramsey out of Tottenham clash|
|Guarin focusing on future at Inter|
|Koeman interested in Swansea role, says agent|
|Stevens expecting more from Stuttgart|
|Agger: Liverpool can handle title pressure|
|Netherlands fall to lowest FIFA ranking in over a decade|
|Adler confident Hamburg can survive ´brutal´ season|
|Champions League still achievable for Everton, says Martinez|
|Zabaleta slams ´shocking´ decisions|
|Blanc: Europe starting to take note of PSG|
|Messi targets silverware|
|Sherwood hopes outburst will reinvigorate Tottenham|
|Martino: Barca must ride momentum|
|Liga MX Preview: Cruz Azul seek form reversal, Toluca in tow|
|Costa Rica Primera Division Wrap: Herediano stumble sends Deportivo Saprissa top|
|CONCACAF Champions League Wrap: Joy for MLS clubs|
|Copa Libertadores Wrap: Nacional Asuncion rise late, Botafogo beaten|
|J.League Preview: Kashima Antlers, Sagan Tosu in top-two tussle|
|Rooney wants United armband|
|Cousillas waves away Aguero fears|
|Messi: Barca progress never in doubt|
|Hyypia proud of defeated Leverkusen|
|Kompany: City´s time will come|
|Blanc unhappy with sluggish PSG start|
|SPL Wrap: Prolific May ends United run, Hibernian held|
|Football League Wrap: Wigan Athletic, Sheffield United avoid FA Cup hangovers|
|UEFA Champions League: Barcelona 2 Manchester City 1 (4-1 agg)|
|Rangers lift League One title|
|UEFA Champions League: Paris Saint-Germain 2 Bayer Leverkusen 1 (6-1 agg)|
|AFC Champions League Wrap: ´Lacklustre´ Guangzhou held, Ulsan win again|
|Montella takes heart from Juve defeat|
|La Liga Preview: Vallecano meet Almeria in crunch relegation clash, Valladolid visit Sevilla|
|Eredivisie Preview: In-form PSV out to dent Vitesse´s title hopes|
|Ligue 1 Preview: Evian host Valenciennes in crucial relegation clash|
|Falcao can make World Cup claims surgeon|
|Ronaldo mentoring Jese, says Pepe|
|UEFA investigate Bayern banners|
|Good hopeful over World Cup prospects|
|Lamela could return this season, claims Sherwood|
|Vermaelen unsure over Arsenal future|
|Cambiasso vows to play on despite uncertain Inter future|
|Castro: No favourites in Porto, Napoli tie|
|Sunderland hire Congerton as sporting director|
|Southampton appoint Krueger as chairman|
|Conte could rotate for Europa League|
|Labadie given 10-match ´biting´ ban|
|Rodgers has restored fear factor, says Fowler|
|Napoli can climb to second, says Reina|
|Newcastle should sack Pardew, say fan group|
|Monk pleased with Swansea performance levels|
|Hernanes backs Inter for top four|
|Cellino ´humiliated´ by Leeds saga|
|Sunderland need Fletcher, insists Poyet|
|Robben hits out at Wenger|
|Monchengladbach extend Favre contract|
|Returning Lucas seeking World Cup berth|
|Abbiati: Milan going in the wrong direction|
|West Brom suffer Brunt injury blow|
|Simeone warning inspired convincing win, says Filipe Luis|
|Agbonlahor eyeing 40-point mark|
|Beckenbauer concerned by Barca-esque Bayern|
|Rooney keen to captain club and country|
|Copa Libertadores Wrap: Bocanegra´s late show clinches draw for Atletico Nacional|
|CONCACAF Champions League: San Jose Earthquakes 1 Toluca 1|
|Urawa Reds apologise for racist banner|
|MLS Preview: Colorado to open campaign at Red Bulls|
|A-League Preview: Premier´s Plate within reach for Brisbane|
|Bayern Munich question Arsenal´s tactics|
|Bundesliga Preview: Struggling Leverkusen face biggest test|
|League Two Wrap: Torquay shock Rochdale, Chesterfield held|
|League One Wrap: Wolves break club record, Brentford and Orient successful|
|Milan were lacking psychologically, says Seedorf|
|Ozil blow for Arsenal|
|Simeone salutes second-half display|
|Championship Wrap: Reading stun Leeds, Blackpool end barren streak|
|UEFA Champions League: Bayern Munich 1 Arsenal 1 (3-1 agg)|
|UEFA Champions League: Atletico Madrid 4 Milan 1 (5-1 agg)|
|AFC Champions League Wrap: Mariners overcome Sanfrecce, Seoul held|
|Cousillas: City can stun Barca|
|UEFA Europa League Preview: Sevilla v Real Betis|
|Charlton appoint Riga|
|New deal for Heimeroth|
|FA reject Walters appeal|
|Mertens tipped for starring role|
|Aluko getting back to his best|
|UEFA Europa League Preview: Lyon v Viktoria Plzen|
|Grosso takes control of Juve´s youth team|
|Blanc: PSG still playing Euro catch-up|
|Kaboul ban overturned|
|Pardew hit with seven-game ban|
|McCann blow for Wigan|
|Cabaye has no regrets over PSG move|
|Martinez taking no risks with Jagielka|
|I turned down Juve in 2012 - Robben|
|Lambert wants more from Tonev|
|Wanchope: City can beat Barcelona|
|Wanchope: City can beat Barcelona|
|UEFA Europa League Preview: Tottenham v Benfica|
|Remy hungry for World Cup place|
|Martino: We have not been consistent|
|UEFA Europa League Preview: Ludogorets v Valencia|
|Inter unlikely to make moves for Dzeko, Torres|
|American firm acquire United shares|
|Callejon predicting strong Napoli era|
|UEFA Europa League Preview: Juventus v Fiorentina|
|Eto´o hints at Chelsea stay|
|Hughton pleased with Bassong performances|
|Barca treble still on the cards - Alexis|
|Monk: Michu close to Swansea return|
|Solskjaer hoping to inspire Cardiff strikers|
|Toprak: Restoring pride is important|
|UEFA Europa League Preview: AZ v Anzhi|
|Charlton sack Powell after FA Cup exit|
|UEFA Europa League Preview: Basel v Red Bull Salzburg|
|Move on from Diouf blow - Dufner|
|Fonte backs Rodriguez for World Cup|
|Stoke fear extended Huth absence|
|Anichebe calls for West Brom spirit|
|Courtois rubbishes Real rumours|
|Zenit thank sacked Spalletti|
|Manchester City positive ahead of Barcelona trip|
|Martinez hopes for Deulofeu stay|
|Kroos undecided on future|
|CONCACAF Champions League: Alajuelense 0 Arabe Unido 0|
|Argentina Primera Division Wrap: Velez Sarsfield close in on top|
|Paraguay Division Profesional Wrap: Nacional Asuncion into second|
|De Boer planning Ajax stay|
|UEFA Europa League Preview: Porto v Napoli|