Barcelona coach Xavi was frustrated after their 1-1 draw with Rayo Vallecano.
Unai Lopez had Rayo ahead in the first half strike before Florian Lejeune's late own goal.
Xavi said, We played two different halves.
"In the first we dominated but were not been aggressive, in the second we came closer to what we wanted, generating and being able to score more. We have to be self-critical and improve.
We once again gave away a goal that was unnecessary on our part, but I think that Inaki Pena played a very solid game. Frenkie de Jong was very good too, playing the 90 minutes."
