MADRID (AP) -- Spanish leader Real Madrid piled the pressure on Barcelona by provisionally taking a 13-point lead over its rival with a 4-0 victory over Racing Santander on Saturday.
Cristiano Ronaldo headed home his league-leading 28th goal after six minutes and the hosts played against 10 men from the 39th when Domingo Cisma was red-carded for handling for a second time.
Karim Benzema scored a goal either side of the break while Angel di Maria marked his first appearance of 2012 with an impressive 73rd-minute strike at Santiago Bernabeu Stadium.
Madrid prepared for Tuesday's Champions League last-16 match at CSKA Moscow with its 18th win in 19 league games, which includes eight straight victories.
Barcelona plays Valencia on Sunday.