Thierry Henry has warned Arsenal not to underestimate teams outside the Premier League’s so-called ‘Big Six’ this season.

The Gunners were handed a massive wake-up call by Brighton & Hove Albion in their final outing before the extended international break.

The Seagulls’ 3-0 home win ended Arsenal’s unbeaten start to the new season and highlighted why they could struggle to defend the title.

Arsenal are unlikely to enjoy the same level of dominance they experienced during their title-winning campaign if teams outside the traditional elite continue to punch above their weight.

Brighton are not the only club capable of causing problems, with Brentford and Leeds United also making impressive starts to the campaign.

The emergence of ambitious clubs outside the established elite could make the Premier League title race far more unpredictable this season.

That is a trend former Arsenal striker Thierry Henry believes should concern the Gunners.

“Brighton and Brentford have done some great things recently, Leeds finished last season really well and have continued to do so,” Henry told Premier League betting site Betway .

From a tactical formation and squad depth perspective, "Henry says Arsenal must be wary of clubs outside the Premier League’s ‘Big Six’" carries substantial tournament implications for international seeding and domestic campaign momentum. Coaching staffs are heavily weighing high-pressing efficiency (PPDA), defensive transition pace, and fixture fatigue management.

Tactical analysts monitoring Champions League metrics emphasize that squad adaptability and set-piece execution will likely dictate outcomes in high-leverage knockout environments. Real-time match telemetry and tracking data continue to inform managerial decision-making.

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