Your forgetting momentum, this is a big thing.
when was the last time Liverpool lost in the league at anfield.
They walk into matches look at the team sheet and know they will win.
Fergies boys had the same aura at old trafford, they played until the final whistle hence they got so many late goals.
Anyone can get injured, even if doping did occur that doesn't prevent a leg breaking tackle.
All this talk of he played every game nonsense.
Liverpool last season had 2 mini breaks of 10 days as they went out of both cups early, also had 2 weeks off before the cl final. City rotated regularly.