Robert Lewandowski is the top scorer in La Liga on 15 goals, four clear of Karim Benzema and Joselu
Barcelona re-established their eight-point lead at the top of La Liga thanks to a routine win over struggling Cadiz.
Sergi Roberto gave Barca the lead late in the first half from a rebound after Robert Lewandowski had a header cleared off the line.
Three minutes later Lewandowski drilled in a fine drive from the edge of the box after being picked out by Roberto.
It was both players' first league goal at the Nou Camp since 23 October's 4-0 win over Athletic Bilbao.
Xavi's side had chances to increase their lead further with Lewandowski hitting the crossbar.
The Poland striker has scored 15 goals in his first 19 La Liga appearances - with only Cristiano Ronaldo, in 17 games in 2009-10, reaching that total in fewer matches since the turn of the century.
Barcelona, whose nearest title rivals Real Madrid beat Osasuna 2-0 on Saturday, have won their past seven La Liga games and are unbeaten in 13.
Their remarkable defensive record continues too with a 17th clean sheet of the league season, a record after 22 La Liga games (passing Deportivo de La Coruna's 16 in 1993-94).
Cadiz, who had two Roger goals disallowed, remain two points above the relegation zone.
- Line-upsMatch StatsLive Text
Line-upsBarcelona
Formation 4-3-3
1ter Stegen23Koundé15Christensen24GarcÃa28Balde6Gavi21F de Jong20Roberto11F Torres9Lewandowski10Ansu Fati
- 1ter Stegen23Koundé15Christensen24GarcÃa28Balde6Gavi21F de JongBooked at 66minsSubstituted forKessieat 69'minutesBooked at 78mins20Roberto11F Torres9LewandowskiSubstituted forRaphinhaat 74'minutes10Ansu FatiSubstituted forAlarcónat 86'minutes
Substitutes
- 5Busquets13Peña Sotorres17Alonso18Alba19Kessie22Raphinha32Torre36Tenas38Alarcón
Cádiz
Formation 4-2-3-1
1Ledesma20Carcelén Valencia23Hernández3Jiménez Jarque21Arzamendia17Escalante4Alcaraz10Bongonda8Fernández Iglesias14Ocampo15Martà Salvador
- 1Ledesma20Carcelén Valencia23Hernández3Jiménez Jarque21Arzamendia17EscalanteSubstituted forAlejoat 62'minutes4AlcarazBooked at 53minsSubstituted forSan Emeterio DÃazat 69'minutesBooked at 82mins10BongondaSubstituted forSobrinoat 62'minutes8Fernández Iglesias14OcampoSubstituted forLozanoat 62'minutes15Martà SalvadorBooked at 24minsSubstituted forRamos de la Florat 74'minutes
Substitutes
- 2Parra5Mbaye7Sobrino9Lozano11Alejo12Diarra16Ramos de la Flor24San Emeterio DÃaz25Meré26Aznar Ussen
Referee:Pablo González FuertesAttendance:72,010Match StatsHome TeamBarcelonaAway TeamCádizPossessionHome65%Away35%ShotsHome16Away14Shots on TargetHome5Away4CornersHome5Away6FoulsHome15Away18Live Text Post update
Match ends, Barcelona 2, Cadiz 0.
90'+3'Full Time
Second Half ends, Barcelona 2, Cadiz 0.
90'+2'Post update
Hand ball by Iza Carcelén (Cadiz).
90'+1'Post update
Corner, Cadiz. Conceded by Ferran Torres.
90'Post update
Raphinha (Barcelona) wins a free kick in the attacking half.
90'Post update
Foul by Fede San Emeterio (Cadiz).
90'Post update
Gavi (Barcelona) wins a free kick in the attacking half.
90'Post update
Foul by Luis Hernández (Cadiz).
89'Post update
Attempt missed. Fali (Cadiz) header from the centre of the box misses to the right. Assisted by Luis Hernández with a cross.
88'Post update
Foul by Ãngel Alarcón (Barcelona).
88'Post update
Iza Carcelén (Cadiz) wins a free kick in the defensive half.
86'Post update
Attempt missed. Chris Ramos (Cadiz) header from the centre of the box misses to the right. Assisted by Rubén Sobrino with a cross.
86'Post update
Anthony Lozano (Cadiz) hits the left post with a header from the centre of the box. Assisted by Luis Hernández with a cross.
86'Substitution
Substitution, Barcelona. Ãngel Alarcón replaces Ansu Fati.
85'Post update
Attempt missed. Ansu Fati (Barcelona) left footed shot from the centre of the box misses to the left.
84'Post update
Andreas Christensen (Barcelona) wins a free kick in the defensive half.
84'Post update
Foul by Chris Ramos (Cadiz).
84'Post update
Foul by Ferran Torres (Barcelona).
84'Post update
Iván Alejo (Cadiz) wins a free kick in the defensive half.
83'Post update
Attempt missed. Raphinha (Barcelona) left footed shot from the centre of the box misses to the left. Assisted by Alejandro Balde.
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