Here are the starters:
Villarreal: Asenjo, Mario, Musacchio, Víctor Ruiz, Jaume Costa, Jonathan, Pina, Bruno, Cheryshev, Giovani and Vietto.
So it is Jona on the right side, Pina in the pivote with Bruno.
Barcelona: Ter Stegen; Dani Alves, Piqué, Mathieu, Jordi Alba; Mascherano, Rafinha, Iniesta; Messi, Luis Suárez and Neymar.
As Marcelino pointed out, their three stars up front cost about 8 times our entire squad.
If you can't watch, and listening to Javi Mata on Radio Vila-real isn't an option either, you can (in addition to following this gamethread, of course), keep up with updates from the Guardian (UK) here.