French football operates by ' race quota ' row at its national training centers . Report ##ed black and Arab players to be reduced to 50 per cent at age 12 - 13 . French football president and national coach Laurent Blanc denied accusations .
French football hit by 'race quota ' row at its national training centers . Report alleges black and Arab players to be restricted to 30 per cent at age 12-13 . French football federation and national coach Laurent Blanc deny accusations .