La Liga leaders Barcelona host Rayo Vallecano
Hansi Flick's side go into game four points above second-placed Real Madrid
Pathe Ciss is now cautioned by Adrian Cordero Vega for another foul on Lamine Yamal.
And Barcelona have another free-kick in a dangerous area.
But once again, nothing comes out of Raphinha's set-piece delivery before Dani Olmo fires wide from distance.
Barcelona look rattled at the moment.
But a foul on Lamine Yamal and the another on Pedri gives them some time to regroup.
Rayo Vallecano's Fran Perez is shown the yellow card for the second of the fouls.
Two brilliant saves from Joan Garcia in as may minutes to preserve Barcelona's slender lead.
He produces an acrobatic save to deny Alvaro Garcia's venomous strike first.
Then, a header from substitute Unai Lopez out of Rayo Vallecano's second straight corner needs a reflex save from the Barca custodian.
Fermin Lopez receives a warm applause from the Camp Nou crowd as he is replaced by Dani Olmo.
Marc Casado also comes on for the Blaugrana as he takes the place of Marc Bernal.
Substitute Ferran Torres is the latest to fire across the goal for Barcelona.
Raphinha looks to get onto the end of it but he doesn't connect despite a valiant slide at the far post.
A spark of brilliance from Lamine Yamal as he gets around the Rayo Vallecano defender and make his way into the box.
But the Barcelona attacker's shot across the goal sails harmlessly wide.
We haven't seen much of the 18-year-old but that was a reminder that he only needs a moment to change a game.
Ferran Torres is not happy with Barcelona's medical staff as Fermin Lopez is on the floor and awaits their attention.
But it looks like it's nothing serious. The Barcelona attacking midfielder is right back on the field after a very brief spell on the touchline.
Barcelona knock the ball around with confidence at the start of this second half on a sunny afternoon at Camp Nou.
Rayo Vallecano are chasing shadows at the moment as they struggle to get any possession.
Barcelona's Portuguese defender #02 Joao Cancelo fights for the ball with Rayo Vallecano's Romanian defender #02 Andrei Ratiu (Image source, Getty Images
Barcelona's Portuguese defender #02 Joao Cancelo fights for the ball with Rayo Vallecano's Romanian defender #02 Andrei Ratiu (
Barcelona make a bright start to the second half.
They win a corner and Fermin Lopez's shot from the edge of the box is blocked in front of the goal by a Rayo Vallecano defender.
However, the referee stops the play for a foul inside the box and the visitors can breath a sigh of relief.
Ferran Torres is replacing Robert Lewandowski for the second.
Meanwhile, we are still waiting for the Rayo Vallecano players to take their places.
The visitors make two changes as Oscar Valentin and Carlos Martin are replaced by Alvaro Garcia and Pacha Espino.
The Barcelona players have made their way to the tunnel and Ferran Torres looks set to come on.
Is Robert Lewandowski's involvement in this game over by half-time?
The 37-year-old also had just 10 touches in the 45 minutes and is yet to attempt a shot in this game.
The Barcelona striker will be hoping for far better service after the break after being starved of involvement so far.
Shots on target - 4
Possession - 65%
xG -1.06
Rayo Vallecano:
Shots on target - 1
Possession - 35%
Lamine Yamal of FC Barcelona and Pedro Diaz of Rayo Vallecano in action
Lamine Yamal of FC Barcelona and Pedro Diaz of Rayo Vallecano in action
At Camp Nou, they have a record of W11, D0, L0 when scoring the opener this season.
Hansi Flick's side have now scored 36 first-half goals in 29 games this campaign - more than any other team in the Spanish top flight.
: Ronald Araujo of FC Barcelona celebrates 1-0Image source, Getty Images
A game of few clear chances so far at Camp Nou.
But it's Barcelona who have the slender advantage at the break through captain Ronald Araujo's header.
But it's a poor delivery from Joao Cancelo and evades everyone at the far post to go out for a Rayo Vallecano goal-kick.
Inigo Perez, Head Coach of Rayo Vallecano, looks onImage source, Getty Images
Three minutes added on at the end of the first half.
Rayo Vallecano win back‑to‑back corners and cause real problems for Barcelona, putting the hosts under serious pressure as we approach the break.
Barcelona will be relieved to hear the referee’s whistle soon as they look to reset and regroup.
Inigo Perez, Head Coach of Rayo Vallecano, looks on
Inigo Perez, Head Coach of Rayo Vallecano, looks on
Gerard Martin of FC Barcelona
Gerard Martin of FC Barcelona
Oscar Valentin of Rayo Vallecano is challenged by Fermin Lopez of FC Barcelona
Oscar Valentin of Rayo Vallecano is challenged by Fermin Lopez of FC Barcelona
Barcelona captain Ronald Araujo celebrates scoring for Barcelona against Rayo Vallecano in La Liga
Image caption, Ronald Araujo scored his third La Liga goal of the season
Barcelona moved seven points clear at the top of La Liga with a narrow victory over Rayo Vallecano at Spotify Nou Camp.
Ronald Araujo headed home a Joao Cancelo corner to give the hosts the lead after 24 minutes.
However, they could have been behind in the first minute when Carlos Martin had a tap in from six yards, but goalkeeper Joan Garcia raced out to close down the angle.
That was Rayo's only shot on target in a largely uneventful first half.
Raphinha fired an effort towards the top corner but it took a deflection and Rayo goalkeeper Augusto Batalla did well to push it on to the crossbar.
After the break, Garcia produced a brilliant save to stop Unai Lopez's close-range header from drawing Rayo level.
Pacha Espino curled a shot over the bar for Rayo in the 83rd minute as Barca clung on for a vital win.
Real Madrid face rivals Atletico Madrid later on Sunday (20:00 GMT) as they look to close the gap back to four points.
Hansi Flick's side travel to Atletico after the international break on Saturday, 4 April before facing them twice more in the Champions League quarter-finals.