Arsenal's defensive woes are mounting with Shkodran Mustafi ruled out for six weeks due to a hamstring injury, while Sead Kolasinac and Laurent Koscielny are doubts for this weekend.
Mustafi was forced off in the first half of Germany's 5-1 World Cup qualifying victory over Azerbaijan on Sunday and is not expected to return until after the next international break.
Kolasinac only managed one half while in action for Bosnia-Herzegovina against Belgium due to a hip injury, while Koscielny is set for a late fitness test on an Achilles injury.
Consequently, manager Arsene Wenger has concerns about how his defence will look for Saturday's Premier League trip to Watford.
"The minor problem we have with Sead Kolasnic, we'll check him today, it's a hip problem," the Frenchman said on Thursday.
"We've lost Mustafi for about four to six weeks. I don't think he'll be available before the next international break.
"It's always difficult. The player I expected to lose the least during the break was Mustafi, because first of all I was not sure if he would play and secondly Germany were already qualified so you didn't expect him to be out injured because the games would be less intense. We have to cope with that now.
"Koscielny has a definite final test tomorrow. At the moment, he's not available. He trained on his own and the first signs are positive.
"I have [concerns about the line-up]. I think about sorting out the problem, but overall I will decide completely tomorrow the line-up because Koscielny will have a test. It looks like if he survives the test he is capable to play."
Arsenal are on a run of four consecutive wins in all competitions and have not lost since the 4-0 reverse to Liverpool in August.
|Manchester City can win Champions League, says Napoli boss Sarri|
|Iguodala out of Warriors´ season opener against Rockets|
|LeBron to play in Cavs´ opener against Celtics|
|Sharapova and Kerber suffer first-round exits|
|Berizzo plotting Sevilla´s revenge after Spartak Moscow humiliation|
|Porto boss Conceicao defends Casillas omission|
|We know it´s difficult now, admits Dortmund boss Bosz|
|Krajinovic denies Rublev happy homecoming in Moscow, Ferrer through in Antwerp|
|It´s tough but it´s not over - Van Bronckhorst|
|Monaco know it will be difficult to qualify now, says Sidibe|
|I don´t know what happened - Sarri bemused by Napoli´s slow start|
|We are growing consistently, insists upbeat Zidane|
|Holders Tenerife respond with win over Ludwigsburg|
|I want to stay at Saracens – McCall not interested in Test job|
|Guardiola hails ´perfect´ City after beating ´one of the best´|
|Real Madrid can´t be happy with Tottenham draw, says Navas|
|Klopp heralds counter-pressing as Liverpool run riot against Maribor|
|Liverpool break record in Maribor thrashing|
|City style fades but newfound steel gives Guardiola reason to believe|
|Ederson kept us in it - Walker relieved after City´s second-half wobble|
|Emery backs ´intelligent´ Mbappe to respond|
|APOEL 1 Borussia Dortmund 1: Sokratis header spares Burki´s blushes|
|Feyenoord 1 Shakhtar Donetsk 2: Bernard brace piles pressure on Van Bronckhorst|
|Monaco 1 Besiktas 2: Tosun double pours more misery on Jardim´s men|
|Spartak Moscow 5 Sevilla 1: Clinical second-half show stuns woeful Spaniards|
|RB Leipzig 3 Porto 2: Hosts claim maiden Champions League victory|
|Maribor 0 Liverpool 7: Salah and Firmino doubles inspire rampant Reds|
|Manchester City 2 Napoli 1: Guardiola´s men see off Serie A leaders despite second-half scare|
|Real Madrid 1 Tottenham 1: Ronaldo on target as Lloris heroics earn point|
|´Older, better´ Dzeko feeling good on return to England|
|Kubica has ´another productive day´ of Williams testing|
|Persepolis 2 Al Hilal 2 (2-6 agg): Kharbin at the double as Al Hilal reach final|
|Monaco without Ghezzal and Jovetic for Besiktas clash|
|Hafeez recalled for Sri Lanka T20 series|
|De Bruyne agent eyes Neymar, Mbappe-style wages for Manchester City star|
|Mertesacker not interested in Deeney’s ´cojones´ comment|
|Craig Shakespeare sacked by Leicester City|
|North set to miss Wales´ autumn series with knee injury|
|Messi is the best in the world, says Paulinho|
|Valverde ready for ´emotional´ game against old boys OIympiacos|
|Nadal to miss Swiss Indoors Basel due to knee injury|
|Manchester United expecting a tough game against Benfica, says Ashley Young|
|Froome eyes Paris-Roubaix for Tour preparation|
|Rafinha has ´no interest´ in Barca exit - Mazinho|
|Mourinho would be happy with draw against wounded Benfica|
|O´Neill wary of Eriksen threat after Republic of Ireland draw Denmark in World Cup play-offs|
|NBA Preview: Five key storylines entering the 2017-18 season|
|Warrington pull off Roberts coup|
|F1 Raceweek: Hamilton closing in, new faces and pink tyres|
|Simeone and Atletico wary of Qarabag threat|
|Robben set for landmark as Barca´s Valverde welcomes former side - Champions League in Opta numbers|
|Conte´s harsh words will motivate us, insists Alonso|
|Mourinho: I´m not signing new contract and I´m not joining PSG|
|Bayern´s Martinez out for at least two matches|
|Furyk hints at Woods Ryder Cup vice-captaincy role|
|Besiktas ask fans not to attend Champions League clash with Monaco|
|Porte set for comeback from Tour de France crash|
|Fit-again Morata could face Roma, Conte reveals|
|Juventus must share the blame for defensive woes, says Chiellini|
|Taylor and Jarvis earn Zimbabwe recalls|
|Nice president supports Balotelli for Italy recall|
|Celtic´s Roberts modelled his game on Robben|
|World Cup play-offs: Italy to face Sweden, Republic of Ireland meet Denmark|
|Proteas rest Tahir and Rabada for T20s|
|Juventus are not in any kind of crisis, says Allegri|
|Cobbles, Alpe D´Huez and new climbs await 2018 Tour de France|
|Watford can beat Chelsea claims Cleverley|
|Sigurdsson admits to falling short at Everton|
|Lloris hails ´machine of success´ Cristiano Ronaldo|
|Gunathilaka ban halved to three matches by Sri Lanka|