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This time next week the first El Clasico of the season will be under way. As usual, we'll bring you all the build-up and all the key moments from the game as Barcelona travel to Real Madrid. But first we want to know who you think is better - Lionel Messi or Real's Cristiano Ronaldo?

Messi stands on the brink of the all-time La Liga goalscoring record but who has made the bigger impact for their respective clubs? Tweet #bbceurofooty or text (UK only) 81111. You can also post a message on the BBC Sport Facebook page.

Half-time is approaching in Istanbul and we await the first goal. We'll have updates from that game and recap on all the key matches in Europe earlier where Real Madrid and Bayern Munich have been warming up for next week's Champions League games with big wins.

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BBC World Service's Steve Crossman in Istanbul: "Such is the ferocity of this fixture that for several seasons now no away fans have been permitted. The rivalry is so deep that it has bled into all sport in the city. Not so long ago a wheelchair basketball match between the two sides was abandoned due to a mass brawl.

"Nothing grabs the attention like Galatasaray v Fenerbahce though. Former Real Madrid and Inter Milan midfielder Wesley Sneijder has been telling me he feels more pressurised in this game than he did in the Milan derby or El Clasico.

"They call it hell you know and it really is something like that," the Galatasaray player says. "You can feel the tension on the pitch, it's something amazing."

While Lionel Messi and Barca top the specials board, tonight's menu also includes a slice of Turkish delight as well as a healthy portion of Italian.

We'll be switching over to Italy to bring you updates on the bottom versus top game in Serie A between Sassuolo and Juventus. What sort of reception is awaiting Juve boss Massimiliano Allegri on his return to the banks of the River Secchia?

Meanwhile, the Istanbul derby is up and running.

Six La Liga titles later, and a decade after making his Barcelona debut, Lionel Messi lines up for his 285th league appearance for Barca looking to write his name into the history books. The 27-year-old is three goals away from Telmo Zarra's all-time La Liga goalscoring record of 251 goals.

Can he mark his landmark anniversary by becoming the Spanish League's all-time leading scorer?

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The date is 16 October 2004. Over 30,000 fans fill the Montjuic for the Catalan derby between Espanyol and Barcelona. The visitors are leading 1-0 thanks to Deco's deflected effort from outside the area. Eight minutes are left on the clock when Frank Rijkaard signals to the fresh-faced Argentine substitute wearing the number 30 shirt to get ready for his debut. Aged 17 years, three months and 22 days, Lionel Messi makes his entrance. You know the rest.