It's deja vu for Arsenal. The north London side are beginning to show signs of regression after a shock 2-1 defeat at the hands of West Brom on Saturday saw the Gunners slump to fourth in the Premier League.
It seems Arsene Wenger's side have not been themselves since their convincing loss to Bayern Munich at the Allianz Arena earlier this month, with a succession of injuries hindering their performances of late.
And almost to rub salt into the wounds, Francis Coquelin has been ruled out for two months with a knee injury - a loss that will hit the Emirates side hard given their reliance on the Frenchman in front of their back four.
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Their infamous injury struggles have struck once again, it seems, with Wenger once again forced to rely upon those unproven and lacking game time to help deliver results.
Against Bayern, Joel Campbell made no significant contribution to aid Arsenal on the attack, whilst Mathieu Debuchy and Calum Chambers have been a far cry from the form that earned them moves to north London.
And with Jack Wilshere, Danny Welbeck, Alex Oxlade-Chamberlain, Theo Walcott and Aaron Ramsey still fighting their way back from respective injuries, Coquelin now adds to a list of stars that Wenger could really do with amidst his aim to win the Premier League.
It's no secret what Arsenal can do with an injury-free team. They dismantled Manchester United at the Emirates and served Bayern Munich their only loss of the season so far - both emphatic displays.
But during the Gunners' last three games, they've declined in both performance and efficiency. Morale seems low at the Emirates.
Whether it's the constant assault of injuries or the seemingly 'weak mentality' that the club has shown under Wenger, something has always haulted the club from achieving what they're ultimately capable of.
However, Arsenal must now get their act together knowing it's now or never for their hopes of progressing in the Champions League on Tuesday night against Dinamo Zagreb. Anything short of a victory will result in their first elimination during the group stages in over 15 years.
The next few weeks will truly test their mettle, with regards to whether they can sustain any degree of form whilst a host of stars return from injury. A win at the Emirates against their Croation opponents will prove pivotal to their confidence ahead of next weekend.