English Premier League club Sunderland sack Uruguayan manager Gus Poyet . Heavy home defeat to Aston Villa on Saturday final straw for U.S. owner Ellis Short . Relegation from English top flight could cost clubs $ 7.8 billion . New EPL television deal due to begin in 2016 worth a seismic hundreds of millions of dollars .
English Premier League club Sunderland sack Uruguayan manager Gus Poyet . Heavy home defeat to Aston Villa on Saturday final straw for U.S. owner Ellis Short . Relegation from English top flight could cost clubs hundreds of millions of dollars . New EPL television deal due to begin in 2016 worth a seismic $ 7.8 billion .