BARCELONA PLAYER RATINGS: Marc-Andre Ter Stegen – 7. Turned into a star fish to block a 45th minute shot from former teammate Braithwaite. Chipped by Puardo for the Espanyol goal and a 92nd minute second, meaning he’s conceded 13 goals in Barcelona’s 35 league games. Though not a clean sheet, he’ll win the Zamora award for being the best goalkeeper. The next best defence, Atletico Madrid, has conceded 27. EPA
Jules Kounde – 8. Booked in the second minute. Shot wide from distance on 25, but then managed his first goal for the club to make it 4-0, flicking in a ball from De Jong. Reuters
Ronald Araujo – 8. Dyed his hair in Barcelona’s colours and hit an exceptional long ball towards Balde to set up the opening goal. Braithwaite was quick, Araujo quicker. AFP
Andreas Christensen – 8. Super signing and his partnership with Balde on the left of the defence has been a major reason in Barcelona having by far the best defence in La Liga. Left the pitch limping. Reuters
Alejandro Balde – 9. Ran past two Espanyol defenders and crossed for the opening goal, before scoring himself, turning the ball in at the back post on 20. His first ever goal for Barcelona and he did well to lose his man to score it. Stunning first season proper for the full back, 19. AFP
Frenkie De Jong – 8. Set the move for the second goal in motion. Sublime ball to Kounde for the fourth as Barcelona won their 27th league title. He could have left last summer, he chose to stay and has had his best season since. AFP
Sergio Busquets – 8. Playing out his final games as a Barcelona player after a stellar career at the club in which he’s now won nine league titles. Barcelona haven’t lost to Espanyol in 25 derbies. EPA
Pedri – 7. Crossed to Balde at the back post to score the second – his first assist of the season. A surprise stat for such an influential player. Getty
Raphinha – 7. Barca’s second top scorer, his fantastic ball with his weaker foot to set up Lewandowski for the third as Barcelona demolished their city rivals. AFP
Robert Lewandowski – 9. Scored his 20th league goal of an impressive first season in Spain, beating his man to stab the ball in. Scored his second and Barcelona’s third on 39, becoming the first Barca player to score two in the first half away from home since Patrick Kluivert in 2003. Getty
Gavi – 7. Played in more games this season than any other Barcelona player. Booked – when he didn’t appear to do anything - and will miss the next game against Real Sociedad at Camp Nou. EPA
SUBS: Ousmane Dembele (Raphinha 62’) – 7. Sent a shot past the far post on 75. Tried to set up Lewandowski for his hat-trick. Getty
Jordi Alba (Araujo 62’) – 7. Booked soon after coming on. Getty
Marcos Alonso (Christensen 74’) – N/A. Celebrated with his club at the end – until they were chased off the field by Espanyol fans. Getty
Ansu Fati (Gavi 75’) – N/A. Getty
BARCELONA PLAYER RATINGS: Marc-Andre Ter Stegen – 7. Turned into a star fish to block a 45th minute shot from former teammate Braithwaite. Chipped by Puardo for the Espanyol goal and a 92nd minute second, meaning he’s conceded 13 goals in Barcelona’s 35 league games. Though not a clean sheet, he’ll win the Zamora award for being the best goalkeeper. The next best defence, Atletico Madrid, has conceded 27. EPA
Jules Kounde – 8. Booked in the second minute. Shot wide from distance on 25, but then managed his first goal for the club to make it 4-0, flicking in a ball from De Jong. Reuters
Ronald Araujo – 8. Dyed his hair in Barcelona’s colours and hit an exceptional long ball towards Balde to set up the opening goal. Braithwaite was quick, Araujo quicker. AFP
Andreas Christensen – 8. Super signing and his partnership with Balde on the left of the defence has been a major reason in Barcelona having by far the best defence in La Liga. Left the pitch limping. Reuters
Alejandro Balde – 9. Ran past two Espanyol defenders and crossed for the opening goal, before scoring himself, turning the ball in at the back post on 20. His first ever goal for Barcelona and he did well to lose his man to score it. Stunning first season proper for the full back, 19. AFP
Frenkie De Jong – 8. Set the move for the second goal in motion. Sublime ball to Kounde for the fourth as Barcelona won their 27th league title. He could have left last summer, he chose to stay and has had his best season since. AFP
Sergio Busquets – 8. Playing out his final games as a Barcelona player after a stellar career at the club in which he’s now won nine league titles. Barcelona haven’t lost to Espanyol in 25 derbies. EPA
Pedri – 7. Crossed to Balde at the back post to score the second – his first assist of the season. A surprise stat for such an influential player. Getty
Raphinha – 7. Barca’s second top scorer, his fantastic ball with his weaker foot to set up Lewandowski for the third as Barcelona demolished their city rivals. AFP
Robert Lewandowski – 9. Scored his 20th league goal of an impressive first season in Spain, beating his man to stab the ball in. Scored his second and Barcelona’s third on 39, becoming the first Barca player to score two in the first half away from home since Patrick Kluivert in 2003. Getty
Gavi – 7. Played in more games this season than any other Barcelona player. Booked – when he didn’t appear to do anything - and will miss the next game against Real Sociedad at Camp Nou. EPA
SUBS: Ousmane Dembele (Raphinha 62’) – 7. Sent a shot past the far post on 75. Tried to set up Lewandowski for his hat-trick. Getty
Jordi Alba (Araujo 62’) – 7. Booked soon after coming on. Getty
Marcos Alonso (Christensen 74’) – N/A. Celebrated with his club at the end – until they were chased off the field by Espanyol fans. Getty