Carragher said in his Telegraph column: "If Arsenal had Alisson Becker they would be almost guaranteed a minimum of nine extra points, which would win them the title. If Liverpool had signed Declan Rice last summer, they might already be six points clear of the rest.
"Overall, Arsenal are a year ahead of Liverpool in their development, but the teams are closer than [Jurgen] Klopp could have imagined when playing catch-up at the start of this season."