The champions' victory denies leaders Real Madrid the chance to take the crown by simply beating Cadiz next Saturday. Los Blancos are 11 points clear of Barcelona with five matches remaining.
Lewandowski set up goals for Joao Felix and Fermin Lopez either side of striking himself to pull Barcelona second, eight points behind leaders Real Madrid.
Barcelona came flying out of the blocks with goals from Fermin Lopez and Joao Cancelo but after Amir Rrahmani pulled one back, the Catalans started to sweat.
Robert Lewandowski's brace snatched champions Barcelona a 2-1 win over lowly Celta Vigo to leave them third in La Liga, trailing leaders Real Madrid by seven points.
Bayern Munich striker Harry Kane said Robert Lewandowski's league goals record was "still a bit too far away" despite again scoring a brace in a 4-2 win over Heidenheim on Saturday.
Barcelona striker Robert Lewandowski wants Lionel Messi back in the club this summer as the Argentine superstar’s contract with PSG is set to expire in June.
Barcelona face Madrid at the Santiago Bernabeu on Thursday in the first leg of the cup tie, already without injured duo Pedri and Ousmane Dembele
Raphinha and Robert Lewandowski's strikes helped Barcelona move eight points clear at the top of La Liga with a 2-1 win at Real Betis on Wednesday.
Fernando Santos, who was the Portuguese national team's manager until last month, was on Tuesday named as Poland's new coach.
Barcelona striker Robert Lewandowski nearly had his 71,000 dollar watch stolen outside the club's training ground Ciutat Esportiva on Thursday, Spanish newspaper Marca reported.
Barcelona defender Gerard Pique is believed to have offered to play for free to assist the Balugranas in sealing the registration of their new signings.
Poland striker Robert Lewandowski has criticised former club Bayern Munich's "politics" after leaving them to join LaLiga side Barcelona.
Real Madrid begin their pre-season with a friendly El Clasico against arch-rivals Barcelona FC at the Allegiant Stadium in Las Vegas, USA on Sunday.
Barcelona take on Real Madrid in a pre-season Clasico friendly in Las Vegas on Saturday that promises to offer a glimpse into the future of the Spanish giants' iconic rivalry.
Bayern Munich coach Julian Nagelsmann said it is "crazy" that Barcelona have been able to make multiple signings in the transfer window, including Robert Lewandowski from the Bundesliga champions.
Barcelona have signed Poland striker Robert Lewandowski from Bayern Munich for up to 50 million euros ($51.14 million), the two clubs said on Tuesday.
Robert Lewandowski will bring the 'winning mentality' Barcelona need according to new team-mate Andreas Christensen.
Poland striker Robert Lewandowski is set to join Barcelona after Bayern Munich reached a verbal agreement with the LaLiga side on a transfer, the Bundesliga champions said on Saturday.
With the acquisition of Robert Lewandowski all but done, Barcelona are set to be back in the La Liga title race in 2022-23 -- providing that they can register their new signing. Back in May, Lewandowski said, "My era at Bayern is over. I don't see any possibility to continue playing for this club anymore." While he did return to preseason training for the German side, there was an expectation that Barcelona would eventually find a way to hit their asking price and they did just that.