A goal disallowed for Germany at the FIFA World Cup has reignited a debate that dominated European football last season: are referees finally getting a grip on the chaos that has turned corner kicks into contact sport?

Jonathan Tah believed he had put Germany 2-1 ahead of Paraguay in extra time, only for VAR to intervene. Waldemar Anton was adjudged to have deliberately blocked goalkeeper Orlando Gill — a decision that would have raised eyebrows in any Premier League ground.

Spain suffered a similar fate, with Pau Cubarsi penalised for fouling Austria's goalkeeper Alexander Schlager from a set piece.

Klopp's verdict and Arsenal's corner record

Former Liverpool manager Jurgen Klopp, watching Germany's exit unfold, did not hold back. "If the goal is illegal, then Arsenal won't be English champions," he said — a pointed reference to the Gunners' record-breaking 19 goals from corners as they clinched the Premier League title last season.

"They've scored 60% of their goals that way," Klopp added of Arsenal, a figure that overstated the reality but captured the scale of the tactic's dominance.

Wrestling at corners had become so widespread by the end of last season that, at times, 16 players crowded into the six-yard box. BBC Sport has learned that senior refereeing figures privately described the situation as a "fight scene" — and emphatically "not real football."

How Collina is retraining his referees

Pierluigi Collina, Fifa's head of referees, sent a clear pre-tournament message to coaches and officials alike: there would be zero tolerance of off-the-ball blocking designed to impede an opponent's run to the ball. The instruction to referees was equally direct — be strict.

Collina's preparation has been meticulous. The 51 referees and 88 assistant referees are stationed at a dedicated training facility in Miami, Florida. Fifa has assembled a pool of semi-professional players who replicate the set-piece patterns and tactical shapes of the 48 competing nations.

Ahead of the quarter-final between France and Morocco, for instance, referee Facundo Tello and his team trained against two full XIs programmed to mimic the movement patterns of both sides — where players position themselves, where they make runs, and whether anyone drops into a blocking role.

Collina believes real scenarios, not diagrams, are what sharpen officials' instincts. Referees receive immediate feedback on their decisions and carry those lessons into the match.

The numbers behind the change

The statistics suggest the approach is having an effect. In the Premier League last season, corners produced goals at an average of 0.49 per match — nearly one every other game. The Bundesliga and the UEFA Champions League were close behind at 0.46.

At this World Cup, that figure has fallen to 0.34, on a par with other top-five European leagues where officials intervene more readily inside the penalty area. It remains, however, well above the 0.20 recorded at the 2022 Qatar World Cup.

Will the Premier League follow suit?

The honest answer, according to BBC Sport's reporting, is: not entirely. Premier League referees are not expected to apply the same hard-line standard. Had the Germany or Spain goals been scored in England, neither would have been disallowed.

The Premier League has promised "enhanced recognition of clear holding actions" for the coming season, but officials are mindful that flooding the opening weeks with penalties would be unsustainable — even if, in theory, it might reset behaviour.

"There is a line in between where they can manage it a little bit better," former Chelsea defender Cesar Azpilicueta said on BBC One. "In England especially, you have more contact — you are used to it. There is something in between where everybody can feel a bit happier."

Coaches will always hunt for a marginal gain. The challenge for Premier League referees is finding a reset that respects the physical nature of the English game — without letting corners descend into chaos again.