Premier League clubs have ramped up security measures around their pitches following a spate of protestors attempting to attach themselves to goalposts.
Amid mounting concerns about the prospect of more games being hit by lengthy delays, clubs are reviewing and drawing up detailed plans preparing for numerous potential scenarios they may need to react to in a bid to thwart demonstrators' bids to disrupt matches.
Tottenham's 3-1 win over West Ham on Sunday was the latest game impacted with six arrests made following incidents in the second half.
Two protestors tried to take advantage of the fact most eyes were elsewhere following a flare-up between both sets of players and storm the pitch to reach one of the goals.
With attention further diverted, a follow-up attempt was then made by other invaders entering the field at the opposite end of the stadium.
Spurs's well-briefed stewards reacted swiftly to prevent a repeat of the scenes at Goodison Park last Thursday and stop any of the protestors securing themselves to either goal.
One managed to do so last week with a zip tie around his neck, leading to a 14-minute delay to Everton's clash with Newcastle the game.
The Premier League wrote to all 20 clubs last week to highlight the issue and advise them to review their security and plans to protect their pitch, in consultation with the police and their safety advisory groups.
A key focus has been increasing stewarding and pitch protection teams around the goals, making relevant staff aware of the growing issue and also the sort of unusual behaviour they need to be on the lookout for to prevent any incursions before they happen.
Clubs have also been advised about having the required equipment available to detach protestors from fixed objects like the goal-frames should any successfully reach their target.
Giant bolt cutters were needed to release the demonstrator who disrupted the Everton v Newcastle game last Thursday.