Yes, I would think L/pool will be their biggest threat, but they were suspect at the back last season, not sure if Klopp has done anything to rectify this.
Brasilian No. 1 goalkeeper Allison and centre-back Van Dijk. Both world record signings. Then defensive midfielder Fabinho, signed from Monaco.
Liverpool also strengthened a) their midfield, they added more creativity: Keita (attacking midfielder and great player) and b) attack: Shaqiri who is going to blossom under Klopp. Both can score goals.
And it's the first time in the Premier League era that Liverpool have so strong bench.
Midfield: Keita, Fabinho, Henderson, Milner, Lallana, Wijnaldum
Attack: Salah, Firmino, Mane, Sturridge, Shaqiri, Solanke
Liverpool have better front three, Manchester City have better midfielders in De Bruyne, David and Bernardo Silva.
Manchester City are better passers (brain), Liverpool play with more passion and aggressivity (heart).
Both are beautiful to watch. I'd like to see them in the Champions League final.
