Jurgen Klopp has been spotted lingering around outside the Emirates clutching the proof of purchase for Alex Oxlade-Chamberlain.
The Liverpool gaffer was seen shaking his fist and yelling, demanding somebody provide him with a refund for the 24-year-old.
The strange incident occurred after Klopp had watched extended highlights of England’s World Cup qualifier against Slovakia.
Oxlade-Chamberlain participated in the 2-1 win but drew criticism for his first-half performance in particular.
Lee Satchell, an onlooker in north London this morning, witnessed the whole thing unfold: “It was definitely Klopp, hundred percent, and he was fuming.
“He kept shouting ‘Give me my f**king money back!’ and ‘False advertising, false advertising!’ over and over again, it was crazy.
“A crowd gathered round but nobody tried to calm him down. In fact, most of us could see his point.
“£35million for someone with an end product like that? It’s outrageous, daylight robbery even.”
Oxlade-Chamberlain twice broke free in the first half at Wembley only to squander the chances with a loose pass and a shot that landed closer to the England band than Slovakia’s goal.
An Arsenal statement on the situation read: “Our returns policy is clear. The deal is final and that’s the end of it.
“As for the claims about false advertising, we never once said he had a decent end product, we were very clear about that.
“As far as we’re concerned, he’s Klopp’s problem now.”
Kevin de Bruyne or Sadio Mane? Why not pick both in this weekend’s big game?
That’s the beauty of Dream Team Weekender – there are no budget limitations so you can pick any player available from this weekend’s fixtures, with Man City v Liverpool the pick of the bunch.
Weekender is the best new fantasy football game around and it’s absolutely free to enter.
Just select seven players from across the Saturday and Sunday Premier League fixtures for your chance to bag that tasty £20k prizepot.
Flopped last week? It doesn’t matter, as Weekender allows you to start afresh every single weekend. Let the games begin – sign up to play here!