A compelling start to the Investec Ashes has been overshadowed somewhat by umpiring controversies.
England made representations to the International Cricket Council after Jonathan Trott was given out lbw on review in England's first innings - third umpire Marais Erasmus contentiously over-ruling on-field umpire Aleem Dar's not out verdict despite missing a crucial Hot Spot replay.
Then on day three, Dar somehow missed a clear edge from Stuart Broad that was caught at slip via a deflection off wicketkeeper Brad Haddin.
Broad declined to walk and Australia were unable to refer it having used all their reviews.
But if either side were hoping to have seen the last of Erasmus and Dar they can think again.
Since the demotion of Asad Rauf and Billy Bowden from ICC's elite umpiring panel, eight of the 12 top-tier officials come from England and Australia and are ineligible to stand in the Ashes.