The Reds temporarily moved back to the top of the Premier League table on Saturday thanks to their 3-0 win over Bournemouth at Anfield.
However, Manchester City are now back at the summit of the table after their emphatic 6-0 thrashing of Chelsea FC at The Etihad on Sunday afternoon.
Liverpool FC are level on points with Manchester City but have played a game less than Pep Guardiola’s men as the Premier League title race begins to hot up.
However, former Liverpool FC star Souness believes that the Reds may have to win every single one of their remaining games if Manchester City are able to continue their recent good form.
Speaking to Sky Sports on Sunday, Souness said: “City have put a marker down today. Liverpool are going to have to win every single game to win this league. City have the bit between their teeth right now.
“The way Liverpool beat Bournemouth [on Saturday] doesn’t confirm they’re back at their best.
“But that result for City has confirmed after their hiccup, they’re saying: ‘We’re bang at it, this is how we’re going to finish the season’.
“If that is their form between now and the end of the season, Liverpool have to win every game. That’s what they’re looking at.
“City today have won 6-0 and you’re thinking, with it being nearly 50/50 in possession, were they that good? Yeah, I think they were in the areas that mattered.
“When they came to defend, they defended properly as a unit and individually. Up front, they were getting goals, albeit through some mistakes from Chelsea.
“City have had their rollicking off their manager and they’ve had their points dropped. They’re going to take some stopping if that’s their mood between now and the end.”
Liverpool FC – who are yet to win a major trophy under Jurgen Klopp – have the weekend off before they return to Champions League action on Tuesday 19 February with a last-16 clash against Bayern Munich.
Their next Premier League game is a crunch clash against Manchester United at Old Trafford on Sunday 24 February.
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