Complex sentence: In 2012, chief executive David McNally quoted a study by the University of East Anglia that the club had commissioned, which cited a cost of £20 million to expand the ground by 7,000 seats.
Split into simpler sentences: In 2012, chief executive David McNally quoted a study, commissioned by the club, and written by the University of East Anglia. The report cited a cost of £20 million to expand the ground by 7,000 seats.