To put it into perspective...
You had Pareja on one side and Rami on the other side of Piatti. No definite last man. Then Pareja slightly pushes Piatti for the foul. Red card.
Now think back to Thursday.. Neymar through on goal. Inigo Martinez the last and only man near Neymar.. hacks him down from behind and only gets a yellow.
The inconsistency is outrageous.
Referee clearly on the payroll... Uncle Flo is acting up.