Merseyside Police say the "vast majority" of football fans did not break coronavirus lockdown rules outside Marine's ground ahead of Sunday's FA Cup tie against Tottenham.
Videos and images shared on social media showed hundreds of fans who appeared to be standing largely in close proximity.
Merseyside Police say a "small gathering" took place ahead of the arrival of the team coaches and officers say road closures were put in place.
They added that 12 Fixed Penalty Notices were issued for breaches throughout the afternoon as police sought to ensure that no more crowds gathered.
Superintendent Andy Rankine said:
The vast majority of people present were adhering to social distancing measures and those who were not were advised by officers.
"As we have done throughout this pandemic, we will always strive to encourage people to disperse and go home peacefully.
"But where we face blatant breaches of legislation, people ignoring the restrictions and even obstructing police from carrying out their duty, our officers will not hesitate to take enforcement action."