Former Arsenal manager Arsène Wenger has seen one of his most debated football reform ideas take a major step forward, after his proposed offside rule change was officially approved for a professional trial.
Wenger, who now serves as FIFA’s Chief of Global Football Development, first floated the idea in 2020 as part of a broader effort to modernize the game and reduce controversial VAR decisions.
Six years later, the proposal is set to be tested during the 2026 season of the Canadian Premier League (CPL).
Wenger publicly proposed the change in February 2020, at a time when football was grappling with mounting frustration over marginal offside decisions determined by VAR technology.
Goals were increasingly being ruled out for fractions of a shoulder or toe being beyond the defensive line.
The Frenchman argued that the spirit of the offside law had drifted away from its original intention, to prevent goal-hanging and that attackers were being unfairly penalised for minimal margins that offered no clear advantage.
His suggested tweak was simple but radical:
An attacker would only be considered offside if their entire body is beyond the last defender.
If any part of the attacker’s body that can legally score a goal is level with the defender, the player would be deemed onside.
The proposal quickly became known in football circles as the ‘Wenger offside rule’ or ‘daylight rule’.
Under the current interpretation of the offside law, a player can be ruled offside if any part of their body that can score is marginally ahead of the defender.
Wenger’s model flips that logic.
Instead of punishing attackers for the smallest measurable advantage, the new approach would: favor attacking play, reduce microscopic VAR decisions and potentially increase goal-scoring opportunities
The Canadian Premier League was selected as the testing ground for the trial during its 2026 season.
The league presents an ideal environment for experimentation due to its manageable size and flexibility in implementing regulatory adjustments.
Importantly, the CPL has not been as heavily dependent on VAR systems as Europe’s elite competitions, making it easier to assess the rule’s impact without complex technological interference.
The trial does not mean the law has permanently changed. Instead, it marks the beginning of a structured evaluation process.
While FIFA plays a significant role in global football governance, changes to the Laws of the Game ultimately fall under the authority of the International Football Association Board (IFAB).
IFAB will review findings from the CPL trial before deciding whether the offside interpretation should be permanently amended.
Historically, IFAB has approached major rule changes cautiously, often requiring multiple test phases before implementation.