Madrid: League leaders Sevilla lost their 100 percent home record and blew the Spanish title race wide open when they went down 2-1 to struggling Real Mallorca on Sunday.

The huge upset means that Sevilla only have a two-point lead over reigning champions Barcelona and the Catalan club, who lost 3-1 to local rivals Espanyol on Saturday, also have a game in hand.

By contrast, Mallorca ease their relegation worries and climb two places after starting the weekend just directly above the relegation zone.

Sevilla took the lead when Fredi Kanoute got his 15th goal of the season by cleverly chipping a penalty past Mallorca goalkeeper Miguel Angel Moya after 21 minutes.

Moya had clumsily tried to tackle Sevilla's Jesus Navas but only managed to foul him in his own area.

Portuguese defender Nunes brought Mallorca back level three minutes after the break when he volleyed home a loose ball.

The visitors then took a surprise lead when sloppy defending left Jordi Lopez free to take the ball into the box before pulling it back and leaving Maxi Lopez to fire into Sevilla's open goal just after the hour.

"Both of their goals were gifts. We left them with an open goal on two occasions in the second half," said Sevilla coach Juande Ramos.

"We've lost an opportunity to add three points although maybe people were getting a little over-confident. At least, we are still on course to be in the Champions League after 38 games."

Mallorca coach Gregorio Manzano said the performance proved his team belonged in the top flight.

"I think we demonstarted that we have the quality to survive at this level. We taught the league leaders a thing or two and were deserved winners," said Manzano.

"Winning is not a reason to start puffing our chests out but at least we have eased some of the pressure."

Below Mallorca, all three bottom clubs lost on Sunday to leave them deeper in relegation trouble.

Osasuna became the first top flight Spanish club to score five goals in a game this season when they hammered Real Betis 5-1 to leave the Seville-based side third from bottom.

"At least it is best to lose once by five goals than five times 1-0," reflected Betis coach Luis Fernandez.

Roberto Soldado and Paco Punal scored early goals to put Osasuna in front but Betis's Arzu Garcia scored with a left-foot volley in the dying seconds of the first half to bring his side briefly back into contention.

However, Osasuna got further goals after the break from David Lopez, Soldado and Pierre Webo.

Real Sociedad, who are second from bottom, went down 1-0 at Racing Santander after a controversial Ezequiel Garay penalty a minute from the whistle.

Bottom club Gimnastic Tarragona were comfortably beaten 3-1 at home by Getafe.

Getafe's Victor Dorado headed home a Mario Cotelo free kick after 13 minutes and Daniel Guiza added their second two minutes before half time.

Miguel Angel Llera got one back for Gimnastic on the hour but Francisco Casquero scored Getafe's third goal 15 minutes before the whistle.

Diego Forlan got the only goal of the game in Villarreal's 1-0 win at Athletic Bilbao, finding the net from a narrow angle after 70 minutes following a wonderfully accurate long-range pass from Leandro Somoza.

However, the Villarreal hero was Forlan's Uruguayan compatriot and goalkeeper Sebastian Viera, who made a series of outstanding saves and blocked a penalty by Athletic's Francisco Yeste five minutes into injury time.

Atletico Madrid remain in contention to return to European competition for the first time since 2000 following an inspired 3-1 win at Celta Vigo.

Spanish international Fernando Torres got two goals in the first 20 minutes and Kun Aguero got Atletico's third just after half time before Celta's Brazilian striker Nene reduced the deficit after 70 minutes.