crushed Rayo Vallecano 5-0 on Saturday, and second-placed Atletico Madrid.
Ronaldo has now scored in eight consecutive games for Madrid - 14 goals in total and 11 in the league. Meanwhile, Radam-el Falcao scored to make it 10 in the league for him, as Atletico Madrid beat Osasuna 3-1 to stay level on points with Barca.
"Last season we were 10 points clear with fewer games to play and we said the league was still open, so we have to think the same and keep on picking up points," said Real Madrid coach Jose Mourinho. "Tonight was im-portant because this is one of the most difficult trips in the calendar, but it's not just Barca we are catching, Atletico also have a big advantage but we'll continue."
Higuain pounced on a defensive error by Mallorca's Anderson Conceicao to hit the opener after only seven minutes. Ronaldo doubled the lead on 21 minutes, finishing a sweeping move that saw the ball switch from Mesut Ozil to Angel Di Maria, passing through Higuain before reaching the him. Ronaldo then carved open the home defence to gift Higuain his second of the evening and sixth league goal of the season on 69 minutes.
Three minutes later Higuain was the provider for Ronaldo, when both needed only one touch to turn a counter-attack into Madrid's fourth. Callejon added a fifth in the last minute.
Blues file complaint against referee
London: Chelsea have filed a complaint over "inappropriate language", reportedly racial in nature, allegedly used by referee Mark Clattenburg during their stormy 3-2 loss to Manchester United on Sunday.
Clattenburg sent off Chelsea pair Branislav Ivanovic and Fern-ando Torres in the second half at Stamford Bridge, and the Premi-er League leaders subsequently accused him of speaking out of turn to two of their players.
"We have lodged a complaint to the Premier League match delegate with regards to inappropriate language used by the referee and directed at two of our players in two separate incidents," said a Chelsea spokesman.
Messi heads Ballon d'Or shortlist
PARIS: Lionel Messi heads a 23-strong shortlist for a fourth FIFA/France Football Ballon d'Or (Golden Ball) award.
National team captains and head coaches plus international media representatives selected by the French magazine will determine who wins the accolade, with Argentina's Messi favourite to land the award again at a presentation on January 7.
A three-man final shortlist will be unveiled on November 29 along with the three-strong shortlists for best coach, best female star and best women's coach.
Meanwhile on Monday, Messi was presented with his second European Golden Shoe award. Messi dedicated the award to his teammates, saying "it is a prize for scoring goals, but without my teammates I couldn't have scored them."