I rewatched the game again, and besides those two unfortunate errors, Vidal was one of our best on the field. He set up chances, made vital tackles and also had a great shot in the first half.
Our worst players on the night were Pirlo and Marchisio.
How did you even miss Pepe in his own thread?
To me it was Pepe (nothing special from him and he costed us two goals we could've scored), then Pirlo (lots of misplaced passes), then Estigarribia (losing the ball too many times, almost none good service to other player except that cross/shot was a fluke but I'll give him credit for that, and he gave possesion once in a dangerous area which almost led to a goal).
Marchisio had one misplaced pass to Estigarribia, one intercepted pass, and miskick the ball once (rather unfortunate with that) but that's it.
He had one good shot ON TARGET, gave a FK in front of the box once, and provide some good balls to Pepe and Estigarribia which both failed to utilise properly.