This is starting to get spicier than a healthy helping of Spanish chorizo. Atletico defender Jesus Gamez launches into a flying challenge on Lionel Messi close to the right touchline. Booking.

Paul Pogba gives Serie A leaders Juventus the lead against fourth-placed Napoli. The former Manchester United midfielder spectacularly drives home from the edge of the penalty area.

Image source, Reuters

Andy West
BBC Sport at the Nou Camp

"Neymar has supposedly been Messi's great ally in his battle with Luis Enrique this week, allegedly breaking them up in the changing room during a post-training session quarrel. So it was fitting that Messi teed up the opener for Neymar - although it really should have been Luis Suarez's goal - and the duo ran straight into each other's arms to celebrate. Messi and Neymar on song together….remind me again, why are Barca struggling?"

Neymar manfully continues before going back down to the ground when he sees the blood stain. The medical men quickly strap him up, splashing a hefty soak of the magic sponge of the wound, before he returns moments later. Barca back to 11 men.

Image source, AFP

Oooof! A meaty challenge from teenage Atletico defender Jose Gimenez leaves Barca scorer Neymar writhing around on the Nou Camp turf. No real intent from the Uruguayan, but it still leaves his Brazilian rival with blood soaking his pristine right sock.

(Beleaguered?) Barca boss Luis Enrique, hands deep in his black overcoat, still has a stern expression across his face. Neymar's opening goal has not cheered him up.

Almost a second goal for Barca! Atletico's usually sturdy defence is rocking, allowing Barca left-back Jordi Alba to fire in a wicked, angled drive. That is too hot for Miguel Angel Moya to handle, but the Atletico keeper recovers quickly to smother Luis Suarez on the rebound.

Messi + Luis Suarez + Neymar = Barcelona goal. Messi skips around Diego Godin in the Atletico box, Suarez knocks on to Neymar, who clinically fires in low at the far post. Advantage Barca.

Image source, AFP

Here's a rare collector's item - Lionel Messi shanks an excellent chance. Neymar jinks through the Atletico defence, scooting from left to right, before threading a neat pass to the Argentina skipper. Messi is looking into the whites of Atletico keeper Miguel Angel Moya's eyes, but haplessly slices wide of his left-hand post.

All Barcelona. The home side hog possession, with Lionel Messi - predictably - having plenty of touches. No clear sight of the Atletico goal yet.

Image source, AFP

Simon Oakley:, external Controversy and pressure are the nights where Lionel Messi comes alive. The headlines are there to be written.

Wills Oblates Ubuntu:, external All eyes will be on Messi and Enrique tonight. Barca losing tonight will pile more intense pressure on Enrique's tired head

Barca settle into their stride, forcing a left-hand corner. Home defender Gerard Pique and Atletico centre-back Diego Godin grapple in the box, Pique looks incredulously towards the referee. Nothing given - for him - as Atletico win a free-kick.

Encouraging start from Atletico, who burst on to the front foot. France youngster Antoine Griezmann, who has impressed since arriving from Real Sociedad, looks for an opening the left. But he gets no change.

The Nou Camp pauses for a moment, with Barca president Josep Maria Bartomeu among those holding up a supportive message, for the victims of the French terrorist attacks.

Then, the football begins as Atletico kick off.

Both sets of players - and the 90,000 fans crammed into the Nou Camp - applaud Lionel Messi as he receives another gong to stick in his trophy cabinet. Unfortunately Luis Enrique did not hand over the memento (see 19:57).....

Image source, AFP

A quick reminder of the two teams as we wait for kick-off? Go on then...

Barcelona: Bravo, Alves, Pique, Mascherano, Alba, Rakitic, Busquets, Iniesta, Messi, Suarez, Neymar. Subs. Ter Stegen, Pedro, Rafinha, Bartra, Sergi Roberto, Adriano and Munir.

Atletico Madrid: Moya; Gamez, Gimenez, Godin, Juanfran; Gabi, Tiago, Koke, Arda Turan; Griezmann, Mandzukic. Subs. Siqueira, Suarez, Raul Garcia, Oblak, Niguez, Torres, Miranda.

Moments away from kick-off now. A relaxed Lionel Messi is smiling as he stands with Luis Suarez in the Nou Camp tunnel. Unhappy? Looks happy enough to me.

Ahead of kick-off, Lionel Messi will be handed a shiny trophy to mark him becoming La Liga's all-time leading goalscorer. Wouldn't it be fun if the Spanish league bosses made his manager hand it over?

Andy West
BBC Sport at the Nou Camp

Image source, Getty Images

"The last time Fernando Torres was here, he scored an injury time goal to secure Chelsea's victory over Barca in the 2012 Champions League semi-final. Atletico can top that, though: the last time they were here, they won the La Liga title with a 1-1 draw in May. And they definitely haven't got the respect they deserve for that triumph: they are one of the best teams in the world and it will be a surprise if they don't win at least one of La Liga, the Copa del Rey or the Champions League this season."

Mikhail AR Johnson:, external As a Chelsea fan I just wanna see Nando prosper so I'm all for Atletico beating Barça.

Rian Hoskins:, external With all the speculation surrounding the club as well as Luis Enrique's future, I can see Messi nicking the winner for Barca.

Mehmet Ali Aksu:, external Suspect Arda Turan to score tonight. Though it feels boring this year maybe the quality of football has dropped by both teams.