The 2026 World Cup has made a lively start, with four matches, three opening ceremonies, two host-nation wins and an entertaining draw involving the third co-host.
But away from the action on the pitch, several new rule changes are already causing confusion among players, coaches, fans and viewers.
The tournament is now entering a packed phase, with 11 straight days of four matches, followed by three days featuring six games.
As supporters adjust to the busy schedule, they are also trying to understand some of the latest laws being applied.
One major talking point came during the United States' win over Paraguay.
Referee Danny Makkelie initially booked USA captain Tim Ream for a foul on Miguel Almiron, but after a VAR review, the yellow card was overturned and Almiron was booked for simulation instead.
Many welcomed the decision, believing diving should be punished.
However, there are questions over whether VAR was allowed to intervene in that situation under the current mistaken identity rules.
The law is designed for cases where the wrong player is punished for the same offence, not where one offence is changed into another.
Former England defender Phil Jagielka supported the idea of punishing simulation but admitted it raises difficult questions.
"If someone clearly dives and there is no contact, why not reverse it?" he said.
"But if there is the slightest touch and a player goes down, where do you draw the line?"
The incident has increased debate over whether the drive for perfect officiating has instead created more uncertainty.
Another talking point has been the introduction of mandatory three-minute hydration breaks, regardless of weather conditions.
Although player welfare is the stated reason, temperatures in the opening matches have not been extreme.
Some coaches, including USA boss Mauricio Pochettino, have questioned whether the breaks are necessary in mild conditions.
Broadcasters have also used the stoppages for adverts, adding to debate over whether the rule has a commercial benefit.
Jagielka said the breaks make matches feel more like they are being played in quarters, but he also believes managers could use them to change the course of games.
"If your team is struggling, those three minutes could be massive," he said.
"It gives coaches a chance to get messages across in a way they usually cannot during a noisy match."
The five-second throw-in rule has also caught players out.
Referees can now begin a visible countdown if they believe a player is wasting time.
Bosnia-Herzegovina defender Sead Kolasinac was penalised against Canada after failing to take a throw-in quickly enough, with possession handed to the opposition.
With the tournament still in its early stages, the new laws are likely to remain a major talking point as teams, officials and fans continue adapting to them.
