Arsenal have nailed the transfer window - but their biggest challenge is yet to come

There was a point just a couple of weeks ago when Arsenal supporters were getting tetchy. Liverpool, Manchester City and even Manchester United had all got deals across the line, while Arsenal - in the eyes of some fans - were idling.

Since then, the Gunners have put their foot on the gas and haven't looked back since. Martin Zubimendi, Kepa Arrizabalaga and Christian Norgaard have all put pen to paper and joined the capital club, with Noni Madueke, Cristhian Mosquera and Viktor Gyokeres rumoured to be next.

Some reports are even suggesting a move for Eberechi Eze could follow thereafter, meaning Arsenal might end the summer transfer window with seven new players in their squad. It's clear Mikel Arteta, Andrea Berta and the Arsenal transfer team aren't messing about this summer.

Slowly but surely, Arsenal's squad is starting to take shape. They look set to add goals to a side that already had one of the best defences in the Premier League and possibly even Europe. Appetites are whet and understandably so ahead of the new campaign, but the biggest transfer challenge for Arsenal is still to come.

The biggest downside to building a super team is the ever-present threat of Europe's elite. It's something that all of England's best teams have had to contend with while they were at their peaks. From Cristiano Ronaldo leaving United for Real Madrid in 2008, to Trent Alexander-Arnold ditching Liverpool for Los Blancos this year. Then there's Leroy Sane being poached from City by Bayern Munich back in 2020.

Unlike Arsenal though, those three teams all had one thing in common: they were winning trophies. It illustrates that even the constant flow of silverware doesn't fend off the likes of Bayern Munich, Barcelona or Real Madrid. Arsenal aren't doing that right now, which leaves them at greater risk of their best talents getting itchy feet in the future.

Arsenal have been getting closer. Three runner-up finishes in a row is frustrating but impressive nonetheless. And then there's the continued improvement in the Champions League, with Arsenal having made the semi-finals for the first time post-Arsene Wenger last season.

But there's only so long the patience can last for and if Arsenal remain the bridesmaid instead of stepping up to the altar themselves, it might spell danger. Not that Arteta needs any reminders, but it's now or never for the Spaniard.