By Grey Whitebloom Real Madrid host their eternal rivals Barcelona in the first clasico of the season on Sunday afternoon. Fittingly for a fixture of such stature, this is a meeting between La Liga’s current top two. Both clubs have won seven of their first eight domestic matches – drawing one – and go into the weekend as the division’s two highest scorers. Here’s everything you need to know about the 250th competitive edition of the biggest game in club football. Where are Real Madrid vs Barcelona playing?Location: Madrid, SpainStadium: Estadio Santiago BernabeuDate: Sunday 16 OctoberKick-off…