That is according to Sky Sports pundit and former Arsenal star Paul Merson.
Manchester City beat Bournemouth 1-0 on Saturday to go back to the top of the Premier League table.
It was their second successive 1-0 victory after overcoming West Ham with the same scoreline on Wednesday.
Bournemouth failed to register a shot on goal, with City dominating the game with 82 per cent of possession.
Liverpool can go back to the summit if they beat Merseyside rivals Everton at Goodison Park on Sunday.
But Merson has warned them City are focused more than ever and reckons they will win their next three matches at least.
City host Watford next weekend before clashes against Fulham [away] and Cardiff [home].
“Them games are just pure concentration,” Merson said.
“The only time Man City sort of get beat or struggle is when they’re, I wouldn’t say their attitude, but they just get complacent.
“They turn up and think ‘we’re just going to wipe the floor here’.
“I do think over the last couple of games that’s been cranked up.
“Even though they’ve only won 1-0, the concentration levels have been a lot better than they have when they’ve been winning fours and fives, because teams have still had chances to score goals.
“I think there is a change in their attitude, I don’t see them slipping up too often at the moment.
“It’s over to Liverpool, I think this is a big game for Liverpool tomorrow.
“If Liverpool win this, it’s one of their hard games ticked off.
“When you reel them three games off [for City], you’d expect them to win those three games.
“I worry for Liverpool, if Man City hit the front I’d find it difficult for Liverpool to catch them.”