The Reds are the only team with a 100 per cent record in the Premier League in the current campaign following sixth successive victories.
Liverpool FC were 3-0 winners against Southampton courtesy of goals from Joel Matip and Mohamed Salah as well as Wesley Hoedt’s own goal sealed three points for the hosts.
The Merseyside outfit are already eight points ahead of the bitter rivals Manchester United after the Red Devils dropped points in a 1-1 draw with Wolverhampton Wanderers.
Jurgen Klopp is looking to steer the Reds to their first Premier League title after the Merseyside outfit finished as runners up in 2002, 2009 and 2014.
Former Spurs forward Crooks believes Liverpool FC’s form should be concerning for Mourinho and Manchester United.
“Something quite special is brewing at Anfield – I can feel it,” Crooks told BBC Sport.
“When you have players who are out of the side and desperate to get in, and when they do they perform like they were never away, you know something is going on.”
Crooks added: “Joel Matip was that player. The smile on his face when he scored his goal – not to mention the camaraderie between himself and Joe Gomez, two players competing for the same shirt – speaks volumes about the harmony within the dressing room.
“If I was Jose Mourinho I would be very concerned by all this.”
Liverpool FC will take on Chelsea FC in their next Premier League game at Stamford Bridge on Saturday evening.
The Blues are two points behind Liverpool FC after Maurizio Sarri’s side drew 0-0 with West Ham United at the weekend.
The Merseyside outfit signed AS Monaco midfielder Fabinho, RB Leipzig’s Naby Keita, Stoke City forward Xherdan Shaqiri and AS Roma goalkeeper Alisson Becker in the summer transfer window.
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