Liverpool had 13 shots at Anfield but only scored through Mohamed Salah’s first half strike, leaving Cody Gakpo, Luis Diaz and Darwin Nunez in poor goalscoring form.
Gakpo failed to get a shot off against the Gunners despite starting as Jurgen Klopp’s No 9, with Diaz on a run of one goal in 15 Premier League games and Nunez goalless in 12 straight games.
That just leaves Salah to carry the attacking load for Liverpool, but he departs for the Africa Cup of Nations in early January and could miss a month of action.
“Looking at Liverpool’s front three, there’s something not right about it,” Carragher said on the Gary Neville Podcast.
“Gakpo has been here for nearly 12 months and he’s had flashes but nowhere near enough. Diaz looks a shadow of himself after his knee injuries last season.
“I really feel that Diaz needs to have a good second half of the season otherwise Liverpool will be going into the market in the summer on the left-hand side. It just feels that with Sadio Mane and Roberto Firmino going, they haven’t replaced them in terms of quality.
“I know Darwin Nunez started on the bench and he is on a poor run of form in terms of goals, but Nunez has to be almost the first names on the team sheet.
“Even in the midweek Carabao Cup win over West Ham, he creates a goal and he creates panic, there’s a feeling of even if it’s not going well, he can run past someone or get a shot off. Somewhere he could do something.
“It feels like we are still making excuses for him but Liverpool have still got right now in terms of a front three is: Salah is your No 1, Nunez is your No 2 and then who else in the front three?”
Fellow Sky Sports pundit Neville described Diaz, Gakpo and Nunez as “scruffy” and says manager Klopp does not know who to pair alongside Salah in the attacking line.
Neville said: “Jurgen Klopp is not sure about that front three, he moves them around from position to position, you don’t know which one is going to play each week. He substitutes them quite early.