The Spanish giants have already faced one another twice this season in the Supercopa, but their first Liga clash will take play in just over three weeks' time.Barcelona will face off with arch-rivals Real Madrid for the Liga Clasico of the new season at Camp Nou on October 7 at 19:50CET.The Spanish giants have already played each other twice this season in the Supercopa, with Tito Vilanova's men triumphing 3-2 in the first leg, before the champions sealed the silverware on away goals with a 2-1 victory at the Bernabeu.Catalan giants Barca will be hoping to equal Madrid’s tally of 88 Clasico wins, but the capital club have lost just once on their last three trips to Camp Nou.Barcelona recently implemented a ticket price increase, which will make the upcoming clash the most expensive match betweent he two sides to date.Luka Modric could make his first Clasico start since his move to Real Madrid from the Premier league, as could Alex Song should he start for Blaugrana.Barcelona currently sit five points ahead of Jose Mourinho's side in the Liga standings after taking three wins from as many matches this season.