Real Madrid are staring the end of the Carlo Ancelotti era in the face while Barcelona's season could come crashing down in the space of a week

An insight into the respective financial injections secured by Spanish football’s two biggest clubs for their efforts on the continent this season has on Friday been provided.Barcelona and Real

A win wouldn't mathematically end Real's one-year reign atop La Liga, but it would signal its imminent demise.Then comes this match, and a seven-point lead with only three match days left would signal Barca's return to domestic dominance.