Complex sentence: He was purchased by Joe Fagan for Liverpool on the 21 May 1984 for £700,000, he made his debut on the 18 August' 84 in the 1-0 Charity Shield defeat to derby rivals Everton.
Split into simpler sentences: He was purchased by Joe Fagan for Liverpool on 21 May 1984 for £700,000. He made his debut on 18 August 1984 in the 1--0 Charity Shield defeat to derby rivals Everton.