86' Modric sends a first-time ball over the top for Bale, who takes a touch, but does not have the pace to gather ahead of the advancing Ter Stegen inside the box.
85' Both Pique and Bale are fine to continue after their clash of heads.
83' Fati receives a cheer from the home fans as he replaces Griezmann in the final third.
78' Yellow card Sergio Ramos García
76' Yellow card Francisco Román Alarcón Suárez
75' OVER! The game is becoming stretched and Barca open up the Madrid defence. Griezmann and Suarez combine to tee up Vidal. He offloads to Messi, but there's no space for a strike. Vidal takes over to find Suarez again, but he blazes his right-footed effort over the bar.
74' VAR! Mendy is a fraction offside as he latches on to Casemiro's lofted pass therefore the goal is rightly chalked off.
72' DISALLOWED GOAL! Bale converts from close range to dispatch Mendy's cross to the back post, steering his effort past Ter Stegen, but the goal is disallowed for offside against the Madrid full-back from Casemiro's ball over the top. VAR will take a look...
66' Casemiro brings down Suarez from behind and goes into the book. The free-kick is in the range of Messi 25 yards out.
65' Benzema tries to help the ball back across the face of goal from a deep cross from Isco, but his effort clips the side of the post and bounces wide with Ter Stegen covering his back stick.
64' BLOCK! Sergi Roberto scoops a cross into the box and Griezmann brings it under control. He tries to force a right-footed strike towards the target, only to smash his attempt into a wall of white shirts.
62' Barcelona are beginning to find their feet in the second half. There's still not the urgency that Valverde would have demanded at the break to take control of the contest, but there has been an improvement.
57' Barca need an injection of quality from someone other than Messi. They can't always be reliant on the Argentine to conjure something out of nowhere.
55' Semedo is withdrawn for the home side and is replaced by Vidal. Sergi Roberto should drop back into right side of the Barca defence.
54' WIDE! Kroos tees up Valverde for another strike from distance, but his effort is deflected behind by a block from Lenglet.
53' Isco collects in space, but he takes the ball into a crowded area in the final third and loses out to Alba.
49' Messi runs at the Madrid defence, escaping a challenge from Casemiro on the edge of the box. He fires a low ball into the middle for Suarez that Ramos clears ahead of the forward.
48' Madrid take the initiative at the start of the second half with early pressure on the home side, but Barca are able to clear their lines with relative ease.
46' We're back underway at Camp Nou.
45' + 1' HALF-TIME: BARCELONA 0-0 REAL MADRID
45' Griezmann hangs a cross deep to the back post for Suarez. The forward opts to cut the ball back across the box, but it evades the run of De Jong in the middle. Agony for the home side.
45' Yellow card Clément Nicolas Laurent Lenglet
44' SAVE! Valverde launches his second effort at goal of the game. He latches on to a clearing header from Lenglet and drills a right-footed effort on the half-volley at goal. Ter Stegen watches it all the way and gets down to make the stop to his right.
41' CHANCE! ALBA HAS TO SCORE! Messi threads the needle with an incisive pass to release Alba through on goal. The Spaniard only has Courtois to beat, but he guides his left-footed strike wide of the right post. A total lack of composure.
41' CHANCE! ALBA HAS TO SCORE! Messi threads the needle with an incisive pass to release Alba through on goal. The Spaniard only has Courtois to beat, but he guides his left-footed strike wide of the right post. A total lack of composure.
40' Suarez is booked for a lunge on Casemiro.
37' WIDE! Mendy tees the ball up for Kroos to strike from the edge of the box, but he drills his attempt wide of the target.
36' Messi whips the corner towards the near post, but the visitors are able to clear their lines. Barca have not been able to sustain a period of pressure on the Madrid backline.
32' CLOSE! Valverde has space to launch a strike at goal from 25 yards. The midfielder connects with a sweet strike that has Ter Stegen concerned. It travels past his gloves, but drifts inches past the right-hand post.
31' BLOCK! Ramos denies Messi with goal-saving block on the line. Alba makes a successful probe and whips a dangerous cross towards the middle. Sergi Roberto almost connects, but Courtois punches it away from hime. Messi latches on to the rebound acrobatically and his effort travels towards goal, only to see his effort turned away by a backpeddling Ramos.
29' Madrid exert pressure down the left as Mendy wins a corner off the legs of Sergi Roberto. However, Ter Stegen clears the first delivery from Bale with his fist before gather a tame header from Casemiro.
28' Barca attempt to break the stranglehold, but Semedo is caught offside as he latches on to Sergi Roberto's throughball into the right inside channel. The Catalan side need a spark.
19' BLOCK! Ter Stegen and Pique have to be alert at the near post to deny Casemiro once again as he connects wth a low drive. However, Pique clears with his boot, while the keeper appeared to have the shot covered anyway.
17' OFF THE LINE! Casemiro comes inches away from the opener, only to see his downward header cleared off the line by Pique with a stooping header. Barcelona switch off from the corner to allow Isco space to launch a cross into the box. Casemiro meets the delivery and heads towards goal, but the veteran defender moves back swiftly to clear his effort away.
16' Casemiro lines up a strike to nothing on the edge of the box, but he sees his effort deflected behind by Alba out for a corner.
15' The visitors exert pressure down the left but the Barcelona defence holds firm to repel two crosses into the middle from Mendy and Isco.
11' Barcelona appeal for a penalty as Alba's low cross is blocked by Carvajal. However, the replays show that the ball did not strike the Madrid full-back anywhere near his arms.
10' SAVE! Neat play between Kroos and Isco, who offloads to Benzema with a backheel creates the first opening of the game. The Frenchman shoots low on his left foot towards the bottom-left corner, but Ter Stegen gets down to make the stop.
9' De Jong leads Barcelona upfield before feeding Alba on the left flank. The full-back goes for a low cross, but it's cut out by Valverde in the middle ahead of Suarez.
8' Casemiro brings down De Jong in the middle of the park just as the Dutchman was looking for a forward pass to Messi.
7' Mendy makes a run down the left flank, but he gets isolated and loses out to Semedo under presssure from the Portuguese.
6' The home side are edging the early stages of the contest as Madrid attempt to get their foot on the ball.
4' Messi launches a cross-field pass towards the run of Alba down the left flank. It finds the Spaniard in stride on the edge of the box, but his cross for Suarez is behind the Uruguayan.
2' Messi has his first surge forward of the game, but his attempted offload towards Sergi Roberto is intercepted by Kroos.
1' We're underway in El Clasico.
87' WIDE! Fati wins a corner off the legs of Carvajal. The resulting delivery from Fati travels deep to the back post, but Suarez can only head his attempt harmlessly wide of the post.