It doesn't seem that long ago that Liverpool boss Jurgen Klopp was looking at title rivals Manchester City with envy over their wealth of talent available to them off the subs' bench.
In fact, it was only 18 months' ago where Klopp pointed out that City had made five substitutions in a match while still leaving the now-departed Leroy Sane on the bench.
Around the same time, it was Liverpool legend Steve McManaman who pointed out: "A squad like Manchester City's has more depth to it than Liverpool's. That's where he (Klopp) has to look.
