Barcelona coach Pep Guardiola has midfielder Xavi and central defender Gerard Pique back from injury for Saturday's match at fourth-placed Real Mallorca.
A win against the Balearic Islanders would put the champions, level on 71 points with Real Madrid but behind on goal difference, three points clear at the top ahead of Real's match at home to Atletico Madrid on Sunday.
Barca left-back Eric Abidal is still sidelined with an adductor muscle problem and midfielder Sergio Busquets is suspended after picking up a fifth yellow card in Wednesday's 2-0 win at home to Osasuna.
"It's not by chance they have got the results they have," he told a news conference. "They are an extremely strong team in every area and one that shows it is led by an immense coach."
"There is a great deal of cohesion on a human level in our dressing room," Manzano told Barca TV on Friday. "We got over the institutional problems and the club's financial crisis and the players were able to focus on sporting issues."
Goalkeeper Iker Casillas has admitted he was wrong to lose his temper with Getafe midfielder Daniel Parejo during Real's 4-2 victory on Thursday.
Coach Quique Sanchez Flores said the team were in good shape and any fatigue would be outweighed by the players' desire to win at the Bernabeu. "There is no lack of motivation for Sunday," he told a news conference.
"I am upset by the attitude," Forlan was quoted as saying in Friday's As newspaper. "You try to do things well on the pitch, for better or for worse, but always giving everything."
Valencia will be without their top scorer David Villa for Saturday's t
