The pair will both start after recovering from injury...
The goalkeeper has been struggling from injury this week, but the coach looks set to hand him the gloves again, ahead of Cristian Alvarez.
De La Pena has only recovered from injury lately, but after playing a part against Sevilla last week, he should now start this clash.
With those two players, it is thought that Espanyol will play a 4-1-4-1 formation, with Ivan Alonso the striker up front.
That will mean no room for Raul Tamudo, who has recovered from injury, but will probably begin the match on the bench.
Moises Hurtado should start in the midfield after serving a recent suspension, with Angel Martinez alongside him.
The game kicks off at 20.00 CET in the Camp Nou this evening.
James Walker-Roberts, Goal.com