"Fergie shaking his head in disgust," said another while a fellow fan wrote: "Fergie shaking his head coz he cant believe whether thats United playing or Millwall."
"Fergie just shook his head lol," added another user.
Others used it as a chance to hit out at the off-field men running things at United.
"Wonder what Gill and Fergie were talking about? Bring them back! COME ON UNITED! #MUFC #LUHG #JoseOut #WoodwardOut #GlazersOut" said one.
Man Utd legend Sir Alex Ferguson 'shook his head in disgust' while at Liverpool game (Image: SKY SPORTS)
Man Utd legend Sir Alex Ferguson 'shook his head in disgust' while at Liverpool game (Image: SKY SPORTS)
Man Utd legend Sir Alex Ferguson 'shook his head in disgust' while at Liverpool game (Image: SKY SPORTS)
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A fellow supporter fumed: "Gill and Fergie in the stands - wonder what they make of this shower!"
Liverpool went 1-0 down after Fabinho's chipped through ball found Sadio Mane who finished with aplomb.
But Alisson, the hero in midweek against Napoli, gifted United an equaliser when he spilt a Romelu Lukaku cross into the path of Jesse Lingard, who tucked home from close range.