Barca meet Real Sociedad tonight pushing for a second-place finish.
Zubimendi has been linked with Barca and Xavi said: "I already said last year that it was very important and good, but there is Merino, Brais... they have top-level footballers."
On La Real, he continued: "I don't know which Real we are going to find. They are physically strong, they don't let you make transitions. Tomorrow we face a great team and a great coach.
"It depends on where they place the defensive line. Getafe itself presented us with a very brave game and I hope a very brave Real Sociedad."